Bystanders help the injured after a vehicle crashed into a crowd of spectators during the Oklahoma State University homecoming parade, causing multiple injuries, Oct. 24, 2015 in Stillwater, Oka. 
Photo by David Bitton/The News Press/AP

5 remain critical after horror crash at Oklahoma State University Parade in Stillwater

Five people remained in a critical condition Sunday morning, police said, after a driver mowed into an Oklahoma State University homecoming parade in Stillwater Saturday, killing four and injuring 47.

Among the dead were a two-year-old boy, a UCO masters student from India, and two people in their 60s. The ages of the injured ranged from one to 66 years old, police said.

Those who remained in a critical condition were aged between 37 and 60, while 30 people had been treated and released, according to a police statement. Nine of the injured were aged 10 or under.

Stillwater resident Adacia Chambers, 25, was arrested at the scene and charged with driving under the influence. Police said they were investigating the incident as a homicide and additional charges would be presented to the Payne County District Court.

Chambers remained in custody, authorities said, and was expected to face court on Monday.

Police released the names of three victims, which included Marvin Lyle Stone and Bonnie Jean Stone, both 65. Authorities did not elaborate on their relationship.

Police also named a 23-year-old victim as Nakita Prabhakar. The University of Central Oklahoma in Edmond earlier released a statement saying one of its MBA students, Nikita Nakal of Mumbai, India, had died in the accident.

“Our students come to Central with their unique goals, hopes and dreams, and Nikita was undoubtedly no different,” the statement said. “While we mourn the potential unrealized, let us also honor her life by pulling closer and appreciating the strength of our Broncho family.”

Witnesses described chaos as the vehicle plowed into the crowd at the homecoming parade at around 10:30 a.m. (11:30 a.m. ET) Saturday.

“At first we thought it was part of the show,” Konda Walker, an OSU alum, told the Stillwater News Press. “People were flying 30 feet into the air like rag dolls.”

OSU student Kailey Carter, 19, managed to walk away after being hit by the car, according to NBC affiliate KJRH. She was treated for a badly cut hand and returned to the scene after being released from hospital.

“I just saw something black coming at us. I didn’t know what it was at first, so I just got up and ran,” she told the station. “The car hit me as it was stopping, and then I flew over some strollers.”

“My roommate was like ‘Do not look, do not look’ because they were putting bags over people, and she was like ‘You don’t want to look there.’ It was just really scary,” said Carter.

OSU president Burns Hargis described the incident as “a senseless and incomprehensible act.”

“Our hearts ache from the weight of the grief we feel. We ask everyone to lift up the families who lost their loved ones and those injured in your prayers,” he said in a statement.

Five people remained in a critical condition Sunday morning, police said, after a driver suspected to be under the influence mowed into a homecoming parade at the Oklahoma State University on Saturday.

Officials considered postponing the homecoming game between the OSU Cowboys and the University of Kansas, but decided to play on in honor of the victims.

The Cowboys prevailed 58 to 10, and dedicated the win to “those lost this morning and to the recovery of those injured,” the OSU Alumni Association wrote on Twitter.

It’s not the first tragedy to strike events connected to Oklahoma State sports programs. Ten people, including two OSU men’s basketball players, were killed in a 2001 plane crash while returning from a game in Colorado.

And Oklahoma State women’s basketball coach Kurt Budke and assistant Miranda Serna were among four killed in a plane crash in Arkansas in 2011 while on a recruiting trip.

This story originally appeared on NBCNews.com

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5 remain critical after horror crash at Oklahoma State University Parade in Stillwater