Officials across the United States are moving to rein in police following accusations of excessive force being used against demonstrators, with protests over the killing of a black man in custody set to enter their 12th day.
George Floyd, 46, died on May 25 in Minneapolis after a police officer pinned him to the ground with a knee to the neck for nearly nine minutes.
North Carolina Governor Roy Cooper has ordered that all flags at state facilities be lowered to half-staff from sunrise to sunset on Saturday in honour of Floyd, who was originally from the state's Fayetteville city.
On Friday, marches and gatherings took place in Atlanta, Los Angeles, Minneapolis, Miami, New York and Denver, among other places, while protesters massed again, in the rain, in front of the White House.
The night-time protests were largely peaceful but tension remains high even as authorities in several places take steps to reform police procedures.
A federal judge in Denver ordered city police to stop using tear gas, plastic bullets and other "less-than-lethal" devices such as flash grenades, with his ruling citing examples of protesters and journalists being injured by police.
"These are peaceful demonstrators, journalists, and medics who have been targeted with extreme tactics meant to suppress riots, not to suppress demonstrations," US District Judge R. Brooke Jackson wrote in the ruling.
In Minneapolis, Democratic city leaders voted to end the use of knee restraints and choke-holds, where pressure is applied to the neck, while California Governor Gavin Newsom said he would end state police training of carotid restraints similar to the technique used on Floyd.
In New York, Governor Andrew Cuomo said his state should lead the way in passing "Say Their Name" reforms, including making police disciplinary records publicly available as well as banning choke-holds.
"Mr Floyd's murder was the breaking point," Cuomo, a Democrat, said in a statement. "People are saying enough is enough, we must change."
Black Lives Matter activists have called for cities to defund police departments. Los Angeles Mayor Eric Garcetti, a Democrat who in April proposed increasing law enforcement funding, this week reversed course and said he would seek some $150 million in cuts to the Los Angeles Police Department.
In another sign of how attitudes have changed, National Football League commissioner Roger Goodell said the league had made mistakes in not listening to players, in a video denouncing racism in the United States.
The NFL has been locked in a debate with players over kneeling protests during the playing of the national anthem.
Two police officers in Buffalo, New York, were suspended without pay on Thursday and placed under investigation after a video showed them shoving a 75-year-old man to the ground.
But the decision was met with pushback from the officers' colleagues, with all 57 members of the police tactical unit quitting in protest at their treatment.
The demonstrations have erupted as the public and businesses struggle to recover from sweeping lockdowns imposed to stop the spread of the novel coronavirus. Disease experts have said the protests could spark new outbreaks.
Washington Mayor Muriel Bowser, who has sparred with US President Donald Trump over his sometimes heavy-handed response to the rallies and marches in the nation's capital, had the slogan "Black Lives Matter" painted in massive yellow letters on a street leading to the White House.
After nightfall, Bowser had light projections spelling out the words beamed on to nearby buildings, which she said on Twitter was a "night light" aimed at Trump.
Australian Associated Press
