A black man has been shot dead by police in the US state of Minnesota as protests continued over the police killing of a black man in Louisiana.
Philando Castile was shot in his car as he reached for his driving licence, his girlfriend said in a Facebook Live video taken during the aftermath.
It follows the death of Alton Sterling, who was shot dead by police during an incident in Baton Rouge on Tuesday.
Hundreds of people have protested for two nights over Mr Sterling’s killing.
The deaths follows a long line of high-profile incidents involving African-Americans at the hands of the police, igniting a national debate about the lethal use of force.
The footage taken by Mr Castile’s girlfriend in Falcon Heights, a suburb of St Paul, shows Mr Castile covered in blood next to her and a police officer outside the car pointing his gun at him.
“You shot four bullets into him, sir. He was just getting his license and registration, sir,” the woman, identified in local media reports as Diamond Reynolds, says.
Police said an investigation was under way.
In Baton Rouge, hundreds of people gathered for a second night of protests at the shop where Alton Sterling, 37, was killed on Tuesday.
Some demonstrators chanted “Black lives matter” and called for justice.
A video emerged on Wednesday that showed the altercation between Mr Sterling and two police officers.
It appears to show Mr Sterling being held down and then shot several times, although some shots are heard when the camera moves away from the confrontation.
Seconds later, one of the officers is seen removing an object from the man’s trousers as he lies on the ground with blood on his chest.
Police have said Mr Sterling was found to be armed. Officers were initially called because of a 911 report of a man brandishing a gun.
The was provided to the Daily Beast by the shop owner, Abdullah Muflahi, who said it proves the man was no threat to the officers when he was shot.