All four cops involved in Floyd’s death face charges
Three policeman involved in the death of George Floyd will be charged with "aiding and abetting murder" as charges against the former Minnesota cop who killed the 46-year-old are escalated.
Charges against Chauvin have been changed to second-degree murder, according to reports.
Minnesota Attorney-General Keith Ellison is due to confirm the charges. Former US presidential hopeful Amy Klobuchar tweeted the news.
The official announcement will come more than a week after Floyd was killed while in police custody in Minneapolis, sparking global protests calling for the end to police violence against African-Americans.
Former Minneapolis policeman Derek Chauvin, who had his knee pressed into Floyd's neck for nearly nine minutes, was initially already been charged with third-degree murder and second-degree manslaughter.
Along with Chauvin, three now-former officers can be seen on video on top of Floyd during his death on Memorial Day in the US on May 25.
Former officers Thomas Lane and J.A. Keung, who helped restrain Floyd, and a fourth former officer, Tou Thao, who stood near the others.
After an initial autopsy cited "underlying" health conditions in Floyd's death, two subsequent autopsies have since found the father of two died by homicide, due to asphyxiation.
Minneapolis Police chief Medaria Arradondo fired the four officers and said they were "complicit" in Floyd's death, and the dead man's family and protesters around the globe have called for them to be arrested and convicted for the killing that has rocked America.
TRUMP SLAMS BUNKER CRITICISM
Meanwhile, US President Donald Trump has tried to downplay being taken to a security bunker in the White House during violent protests outside, saying he was inspecting the room.
He also denied tear gas was used the next day to clear a large crowd from an adjacent area so he could walk to a nearby church for a photo to be taken with a bible.
"They didn't use tear gas," Mr Trump told Fox News Radio.
This contradicts video footage and eye witness accounts from many who were present, including Australian media.
The church visit has been widely criticised for sparking a heavy-handed response by police, who pushed back protesters as well as volunteers and clergy at St John's church.
"Now, when I went, I didn't say: 'Oh, move them out.' I didn't know who was there," Mr Trump said.
Washington DC is among dozens of American cities rocked by riots, violence and looting over the past week, as well as arson attacks such as that on the historic church.
Mr Trump was widely reported to have been swept by the Secret Service into a security bunker used during terrorist attacks for almost an hour, when demonstrators first tried to breach the White House grounds on Friday night.
"I was there for a tiny, short little period of time," Mr Trump said.
"It was much more for the inspection.
"Nobody ever came close to giving us a problem.
"It was during the day, it was not a problem."
It came as Defence Secretary Mark Esper appeared to step back from Mr Trump's plan to send the Army into states that couldn't control civil unrest, a move which would be only possible with the rarely used Insurrection Act of 1807.
"I do not support invoking the Insurrection Act," Mr Esper said at the Pentagon.
"The option to use active-duty forces in a law enforcement role should only be used as a matter of last resort and only in the most urgent and dire of situations. We are not in one of those situations now."
The Insurrection Act was last used to quell riots after the Rodney King trial in 1992.
CHAOS IN NEW YORK AS THOUSANDS DEFY CURFEW
On Tuesday night (local time), thousands of New Yorkers defied the city's strictest curfew in 70 years after a day of mainly peaceful protests across the country over the deaths of black Americans at the hands of police.
While dozens were arrested in New York and there was looting and shootings, an increased police presence successfully avoided a repeat of the widespread mayhem of the night before.
Tens of thousands of protesters took to the streets of dozens of major cities but there were fewer clashes with police and no repeat of the wild scenes in the nation's capital the night before.
A march in Washington to the Lincoln Memorial saw an unprecedented security operation at the site, which is considered almost sacred to many Americans.
Authorities also erected a large fence around Lafayette Park, outside the White House, to deter protesters after the Trump administration controversially cleared the area Monday with tear gas and rubber bullets.
Mr Trump continued to ratchet pressure on the states to control the riots, and to call in the National Guard, after the protests devolved into the most significant civil unrest in decades.
"NYC, CALL UP THE NATIONAL GUARD," he tweeted. "The lowlifes and losers are ripping you apart. Act fast!"
Democratic presidential candidate Joe Biden slammed Mr Trump's response to the current crisis, saying his inflammatory comments were making it worse.
"I won't traffic in fear and division. I won't fan the flames of hate. I'll seek to heal the racial wounds that have long plagued our country, not use them for political gain," Mr Biden said, on his first journey outside his home state of Delaware in 10 weeks.
"I'll do my job and I'll take responsibility, I won't blame others," he said in a speech, which was seen as his return to campaigning after secluding himself in his basement amid the coronavirus pandemic.
It came as the family of George Floyd, whose death last week after a white police officer knelt on his neck for almost nine minutes, paid tribute to him as a father.
Roxie Washington, the mother of his six-year-old daughter Gianna, said in Minneapolis he was a good man.
"I want everybody to know that this is what those officers took from me," she said, crying.
"Gianna does not have a father. He will never see her grow up, graduate."
Former NBA player Stephen Jackson also revealed he was a close friend of Mr Floyd and that the 46-year-old father of two had moved to the midwest city to find work.
"That was the main reason for moving. When he called me, his whole reason coming was to get here, get away from Texas so he could provide for his family, be a better father," Mr Jackson said.
"His whole reason being in Minnesota was to drive trucks. He was doing great here, turning a curve, and then this happened. So he was doing his part."
While one officer has been charged with Mr Floyd's death, three others who also restrained him have not been charged.
The state of Minnesota filed a civil rights charge against the city's police force over the killing, saying it would investigate the actions of the department over the past decade.
Originally published as All four cops involved in Floyd's death face charges