A police officer who fatally shot an unarmed black motorist in Tulsa, Oklahoma, has been charged with manslaughter, a prosecutor has said.
Officer Betty Shelby shot and killed Terence Crutcher last week while he was standing next to his broken-down car.
In Charlotte, North Carolina, a curfew went into effect to prevent a third night of violence after a black man was shot dead by a black police officer.
Keith Lamont Scott’s family deny police allegations that he was armed.
Demonstrators protesting against Mr Scott’s death in Charlotte have defied the curfew – running from midnight to 06:00, some remaining on the streets singing gospel songs.
According to Cpt Mike Campagna, officers have not enforced the curfew as protests were largely peaceful.
However Charlotte police reported two officers were injured on Thursday night.