Tyre Nichols: Five Memphis police officers charged over death
Five ex-police officers have been charged with second-degree murder after a man died following a traffic stop in Memphis, Tennessee.
Tyre Nichols, 29, who was black, died three days after his arrest on 7 January for alleged reckless driving.
The officers, who are all black, also face charges of aggravated assault, aggravated kidnapping, official misconduct and official oppression.
The family of Mr Nichols say an autopsy indicates he was severely beaten.
US President Joe Biden called for "peaceful protest" as authorities prepare to release the footage on Friday evening local time.
The city's police chief earlier also urged people to remain calm once the clip is made public.
This is not just a professional failing," Cerelyn Davis, who is the first black woman to serve as the city's police chief, said of the ex-officers' alleged conduct
"This is a failing of basic humanity toward another individual."