This Week in Pictures: April 18-24

  • Firefighters put out the remaining fire at a thatched cottage in Hamburg, Germany, April 18, 2015. The fire broke out in the historic district of Neuengamme and consumed the house completely.
  • A man rides a horse at a playground on a hill in Kabul April 19, 2015.
  • Czech Republic’s Petra Kvitova is reflected in a mirror as she returns a ball to France’s Caroline Garcia during their semifinal match of the Fed Cup tennis tournament in Ostrava, April 19, 2015.
  • A child stands at the reflecting pool before a remembrance ceremony, April 19, 2015, at the Oklahoma City National Memorial & Museum in Oklahoma City. People gathered at the former site of the Oklahoma City federal building to commemorate the 20th anniversary of the terrorist bombing there that killed 168 people and injured many others.
  • Portland Trail Blazers center Meyers Leonard (11) and Memphis Grizzlies center Marc Gasol, of Spain, right, recoil after colliding in the second half of Game 1 of an NBA basketball Western Conference playoff series, April 19, 2015, in Memphis, Tenn. The Grizzlies won 100-86.
  • Toro Rosso driver Max Verstappen of the Netherlands steers his car during the Bahrain Formula One Grand Prix at the Formula One Bahrain International Circuit in Sakhir, Bahrain, April 19, 2015.
  • In this April 20, 2015 photo, rescuers help children to disembark in the Sicilian harbor of Pozzallo, Italy. About 100 migrants, including 28 children, were rescued on Sunday by a merchant vessel in the Sicilian Strait while they were trying to cross. Another smuggler’s boat crammed with hundreds of people overturned off Libya’s coast on Saturday as rescuers approached, causing what could be the Mediterranean’s deadliest known migrant tragedy and intensifying pressure on the European Union Sunday to finally meet demands for decisive action. 
  • Runners make their way down Commonwealth Avenue during the Boston Marathon in Boston, Massachusetts, April 20, 2015. 
  • Guatemalan Nobel Peace laureate Rigoberta Menchu holds a bypass looper shear while working in a habitat preservation and native plant restoration project for endangered burrowing owls with Google employees in Mountain View, Calif., April 20, 2015.
  • Beachgoers watch the Israeli Air Force Aerobatic team rehearse over the Mediterranean Sea in preparation for an aerial display on Israel’s Independence Day in Tel Aviv, April 20, 2015. Israel marks its 67th Independence Day beginning Wednesday night.
  • An injured man walks amid debris as residents reacts at a site hit by what activists said were barrel bombs dropped by forces of Syria’s President Bashar al-Assad, at al-Thawra neighborhood in Idlib city, April 20, 2015.
  • An Afghan laborer works at a brick kiln on the outskirts of Kabul, Afghanistan, April 20, 2015. Due mainly to foreign aid Afghanistan’s economy has shown signs of improvement though many Afghans still face job insecurity, with tough competition for work as day laborers offering meagre returns, a situation further complicated by an increase in attacks in the country coinciding with the partial withdrawal of NATO-led forces.
  • A member of the Houthi militia with a fire extinguisher attempts to douse flames in a property allegedly damaged in an airstrike carried out by the Saudi-led coalition targeting two military bases controlled by Houthi fighters in Sana’a, Yemen, April 20, 2015. A huge explosion rocked Sana’a as airstrikes carried out by the Saudi-led coalition hit what witnesses said was a base used by a missile brigade of the Yemeni army, but is now controlled by the Houthis, the explosions damaging nearby civilian housing.
  • A Saudi soldier fires a mortar towards Houthi movement position, at the Saudi border with Yemen, April 21, 2015.
  • Members of the armed forces of Nagorno-Karabakh play checkers using a chess set at their post along the line of contact with Azerbaijani forces in the eastern direction on April 21, 2015 near the town of Agdam, Nagorno-Karabakh. Since signing a ceasefire in a war with Azerbaijan in 1994, Nagorno-Karabakh, officially part of Azerbaijan, has functioned as a self-declared independent republic and de facto part of Armenia, with hostilities along the line of contact between Nagorno-Karabakh and Azerbaijan occasionally flaring up and causing casualties.
  • Members of the 9th Battalion AIF Living History Unit from Rockhampton play two-up at Longreach station on April 21, 2015 in Winton, Australia. The 2015 ANZAC Troop Train Re-Enactment commemorates the 100 year celebration of ANZAC, the steam train with nine authentic refurbished carriages will travel from Winton to Brisbane stopping overnight at Longreach, Emerald, Rockhampton and Maryborough.
  • Bakarwal nomad children are seen through a veil that covers their tent as they react to a Kashmiri man photographing them on the outskirts of Srinagar, Indian controlled Kashmir, April 21, 2015. Bakarwals are nomadic herders of Jammu Kashmir state who wander in search of good pastures for their cattle.
  • A tourist is seen in a reflection off the facade of a shopping mall at the Marina Bay Sands, which is a popular tourist spot with hotels, shopping, and casinos, April 21, 2015, in Singapore. The city-state’s government announced earlier in the year, new plans for its global marketing campaign to tap on the country’s year-long 50th birthday celebration, as part of its continued effort to boost tourism numbers in 2015, after the country went through a challenging season in 2014.
  • Some of the thousands of people hold posters calling for the end to xenophobic attacks, during a candle vigil in memory of those who have died in the recent attacks, in Johannesburg, South Africa, April 21, 2015. Although the attacks of foreigners have stopped, thousands have been displaced and are living in refugees camps in Johannesburg.
  • A meteorite burns up in the atmosphere as seen in this photo taken near of Salgotarjan, 109 kms northeast of Budapest, Hungary, late April 21, 2015. The Moon and Venus can be seen on the left.
  • A member of the Barrio 18 gang waits to be admitted upon their arrival to the San Francisco Gotera penitentiary, April 21, 2015. Salvadoran government transferred 1,177 inmates, members of the Barrio 18 gang from Izalco jail to San Francisco Gotera in a effort to curb gang violence activity, according to local media.
  • Israeli youth Scouts stand still as the two minutes siren sounded across the country during a ceremony at the eve of Memorial Day, a memorial in the Mount Herzl military cemetery, in Jerusalem, Israel, April 21, 2015. Israel mark its “Day of Remembrance for the Fallen Israeli Soldiers and Victims of Terrorism.”
  • The hands of displaced foreign nationals are photographed as they stand outside a shelter for displaced foreigners in east of Johannesburg, South Africa, April 21, 2015. The South African army has been deployed to areas in that remain volatile after a spate of attacks targeting immigrants, the defense minister announced on Tuesday.
  • Visitors pay their respects at the military grave yard on April 22, 2015 in Tel Aviv, Israel. Israelis today celebrate “Yom Ha’atzmaut” marking the 67th year since the independence of the Israeli State.
  • General view of Chilean Calbuco volcano from Puerto Montt, located at 1000 km southern Santiago de Chile, Chile, April 22, 2015. Due to the eruption of the volcano with a smoke column 20 km high, authorities declared a red alert and ordered the evacuation of around 1500 inhabitants of Ensenada, Alerce, Colonia Ri­o Sur and Correntoso towns.
  • Juventus players celebrate their advancing to semifinals after defeating Monaco in aggregates, following the Champions League quarterfinal second leg soccer match between Monaco and Juventus at Louis II stadium in Monaco, April 22, 2015.
  • A miner attends a rally to demand the payment of their salaries from the government in central Kiev, April 22, 2015.
  • A woman walks up the stairs at Berlin’s main station during a nationwide strike by Germany’s train drivers union GDL, April 22, 2015. A sixth German rail strike in the last 10 months caused widespread disruption for commuters and companies across the country on Wednesday when 3,000 train drivers walked off the job to back their claims for higher pay and negotiating rights.
  • Israeli soldiers stand next to graves on Memorial Day at Kiryat Shaul military cemetery in Tel Aviv, April 22, 2015. Israel on Wednesday marks Memorial Day to commemorate its fallen soldiers.
  • Detroit Tigers second baseman Ian Kinsler blows into his hand as snow falls during the first inning of a baseball game against the New York Yankees, April 22, 2015, in Detroit.
  • One World Trade Center stands in Lower Manhattan, April 21, 2015, in New York. The visitors center at the top of the 104-floor skyscraper, One World Observatory, is scheduled to open to the public on May 29.
  • A man washes his face outside a shelter for displaced foreigners in east of Johannesburg, South Africa, April 21, 2015. The South African army has been deployed to areas in that remain volatile after a spate of attacks targeting immigrants, the defense minister announced on Tuesday.
  • The waxing crescent moon is seen behind skyscraper in center of Warsaw, April 22, 2015.
  • A members of National Disaster Response Force carries an injured child, found under the debris of a residential building, to an ambulance, in New Delhi, India, April 22, 2015. One man and a child were killed and at least nine others were injured when a three story residential building collapsed following an explosion in a cooking gas cylinder, according to local news agency Press Trust of India.
  • Russian conscript, wearing a military uniform, smiles as he departs to the Moscow region from a local railway station in Stavropol, in southern Russia April 22, 2015.
  • Policemen confront pro-democracy protesters (L) as they try to approach Chief Executive Leung Chun-ying’s vehicle during his public visit to appeal support on the government’s political reform proposal in Hong Kong, April 22, 2015. The Hong Kong government gave lawmakers their first look on Wednesday at a long-awaited electoral blueprint for selecting the city’s next leader, a plan that reflects China’s desire for a tightly controlled poll despite calls for more democracy.
  • An injured boy receives medical treatment in a field hospital after what activists said were air strikes and shelling by forces loyal to Syria’s President Bashar al-Assad in the Douma neighborhood of Damascus, April 22, 2015.
  • A man takes part in a Saint George’s Day parade in Nottingham, central England, April 23, 2015.
  • Gregory (C), 25, transports wood from a sailboat to Wharf Jeremie, in Port-au-Prince, on April 23, 2015. The wood from Jeremie, Haiti, 177 miles west of the Haitian capital took about two days to arrive to Port-au-Prince and will sell at approximately 250 to 300 gourdes (5 to 6 USD) for a dozen pieces depending on size. Gregory says he earns about 500 gourdes (10 USD) transporting wood from sailboats to the wharf.
  • A migrant cries during an inter-faith burial service for 24 dead migrants at Mater Dei Hospital in Tal-Qroqq, outside Valletta, April 23, 2015. European Union leaders who decided last year to halt the rescue of migrants trying to cross the Mediterranean will reverse their decision on Thursday at a summit hastily convened after nearly 2,000 people died at sea. Public outrage over the deaths peaked this week after up to 900 migrants died last Sunday when their boat sank on its way to Europe from Libya.
  • A passenger bathes an child using a pipe that supplies water to trains at a railway station on a hot summer day in the northern Indian city of Allahabad, April 23, 2015. Temperatures in Allahabad on Thursday reached 107.6 degrees Fahrenheit, according to India’s metrological department website.
  • Light shines on a mourner as bishops process into Holy Name Cathedral for the funeral Mass of Cardinal Francis George on April 23, 2015 in Chicago. George died last Friday at age 78 after a long battle with cancer.
  • Members of Alpha Omicron Pi console each other during a candlelight vigil and memorial service for five nursing students who were killed in a multi-vehicle accident, April 23, 2015, at Georgia Southern’s Statesboro campus in Statesboro, Ga. The deadly, chain-reaction crash early Wednesday on Interstate 16 involved six vehicles. 
  • A car is covered in ash, left behind by the eruptions of the Calbuco volcano, in Ensenada, Chile, April 23, 2015. The volcano erupted Wednesday for the first time in more than 42 years, billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile, and is considered one of the top three most potentially dangerous among Chile’s 90 active volcanoes. 
  • An Egyptian youth carries a lit flare as supporters of the Muslim Brotherhood gather in the El-Mataria neighborhood of Cairo, Egypt, to protest the 20-year sentence for ousted president Mohammed Morsi and verdicts against other prominent figures of the Brotherhood, April 24, 2015. Morsi was convicted of using force against protesters and sentenced to 20 years in prison on Tuesday, the first verdict against him since he was removed by the military nearly two years ago.

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In one of the deadliest migrant tragedies in the Mediterranean, more than 800 people are believe to have drowned as they tried to reach Europe by ship. About 100 people, including 28 children, were rescued by a merchant vessel in the Sicilian Strait.

The Chilean Calbuco volcano erupted, and stunning pictures of the event captured people’s attention around the world.

Meanwhile in the U.S., people gathered in Oklahoma to commemorate the 20th anniversary of the bombing of the Oklahoma City federal building that killed 168 people and injured many others. And thousands ran the Boston Marathon, two years after the bombing by the Tsarnaev brothers detonated two pressure cooker bombs. The marathon happened to take place in the midst of younger brother Dzhokhar Tsarnaev’s trial. 

For more feature photography, go to msnbc.com/photography

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