Hundreds of people continued protesting on the streets of the city of Charlotte, North Carolina, for the third successive night despite a curfew imposed after the death of a man wounded by gunfire Wednesday.
The protests on Thursday were less violent than the previous two days despite the use of tear gas by the police to disperse some of the demonstrators.
Two police officers received treatment after they were sprayed with a chemical agent by the protesters, the police said.
Soldiers and National Guard troops swarmed the streets of Charlotte after North Carolina Gov. Pat McCrory declared a state of emergency in the city following two nights of racial protests.
On Thursday, Charlotte Mayor Jennifer Roberts imposed a curfew between 12 am and 6 am, to be in effect each day until the protests end.
The curfew was imposed after news broke about the death of a young man, who was shot during the protests Wednesday.
The local TV station WBTV, citing sources close to the family, identified the man as Justin Carr, a 26-year-old black man who was in critical condition since Wednesday.
Carr was shot in the head around 8.30pm local time (12am Saturday GMT) in downtown Charlotte, where riots between protesters and police broke out as a result of the death of African-American Keith Lamont Scott on Tuesday by police shooting.
On Wednesday night, the City of Charlotte said on its Twitter account that the shooting that killed Carr was "civilian on civilian" and "Police did not fire shot."
Authorities have not yet identified any suspects responsible for the shooting, although photos published by local media show that some protesters were armed.
Several people have also sustained injuries during the protests and almost 50 people have been arrested.
In the first death on Tuesday, Lamonth Scott, 43, was killed by a local police officer in an apartment complex parking lot while he was waiting to pick up his son from school.
The police say Scott was armed - not unusual in a state that allows its citizens to carry a handgun with a permit - and posed an "imminent deadly threat" to the police officers, a version Scott's family members and witnesses deny.
Scott's family gained access Thursday to video footage recorded at the scene and asked for it to be made public immediately.
Charlotte-Mecklenburg Police Chief Kerr Putney told The Charlotte Observer, according to what can be seen in the video, the police officer, Brentley Vinson, was justified in shooting Scott, a view shared by Mayor Jennifer Roberts.
However, the attorney for Scott's family, Justin Bamberg, said that Scott shows no sign of aggression in the video footage and it is unclear if he was carrying a weapon, as alleged by the police.
Scott's family has asked the North Carolina State Bureau of Investigation to investigate the incident and the bureau said it has begun a probe to determine if the officer who shot the black man should be charged or not.
