The fatal shooting this week by an East Pittsburgh, Pa., police officer of an unarmed teenager who was attempting to flee prompted more protests on Thursday and calls for answers from law enforcement officials.

The teenager, Antwon Rose II, 17, was a passenger in a car that had been pulled over because it matched the description of a vehicle that had fled an earlier shooting in which a 22-year-old man was wounded, the Allegheny County Police Department said in a statement.

A video that recorded the fatal shooting on Tuesday night and was posted on Facebook shows two people running from police vehicles as three shots are fired. One of the people, later identified as Antwon, appears to fall to the ground.

The authorities confirmed on Thursday that Antwon was struck three times but did not specify where.

“Why are they shooting?” the woman recording the video says. “All they did was run and they’re shooting at them!”