Europe remains on edge after police in Belgium, France and Germany arrested more than two dozen suspects with links to Islamic terrorists early Friday morning in sweeping anti-terror raids.
It appears to be part of a coordinated effort by European officials to ramp up security measures and avert potential threats in the wake of the deadly French terror attacks last week at a Jewish store and satirical newspaper Charlie Hebdo, which left 17 dead.
NBC News foreign correspondent Ayman Mohyeldin has been covering the developing investigation and counter-terrorism operations. He will host a Twitter chat to answer your questions.
The chat begins Friday at 1 p.m. ET. Just tweet your questions with #msnbcchat.