A video has been released which shows a black man being shot dead by US police officers as he stepped out of a car with his hands raised.
Jerame Reid was a passenger in a car pulled over by police in Bridgeton, New Jersey, for going through a stop sign.
Before opening fire, one officer warns his partner about seeing a gun.
The case follows months of protests over the killings of unarmed black men by white police officers in New York and Ferguson, Missouri.
However, one of the two officers involved in the Bridgeton altercation is black.
The newly released footage from a police dashboard camera shows police approach the car and then an officer warning his colleague about seeing a gun in the glove compartment.
An officer shouts at Jerame Reid to show his hands and warns him that: "If you reach for something, you're going to be... dead."
After the officer reaches into the car to retrieve what appears on the video to be a handgun, the car door opens and Jerame Reid steps out with his empty hands raised to his shoulders.
At that moment, the two officers fired several shots.
The killing on 30 December has already sparked protests in Bridgeton, a city of about 25,000 people south of Philadelphia.
The BBC's Nick Bryant in New York says the video is likely to inflame tensions further.
Both officers have been given leave pending an investigation by the Cumberland County prosecutor's office.
Activists say they want the prosecutor to transfer the case to the state attorney general.