Anger and unrest have spread across cities in the United States over the police killing of yet another unarmed African American.
Like other similar incidents, the killing of George Floyd in Minneapolis was caught on video and went viral online.
Images of police officer Derek Chauvin kneeling on Floyd’s neck for several minutes, leading to Floyd’s death, sparked anger.
Crowds protested, demanding justice and attacking police and vehicles. Police in riot gear fired tear gas, rubber bullets and pepper spray
The violence in Minneapolis prompted a tweet from President Trump, who called protesters “thugs”, adding “when the looting starts, the shooting starts”.
So, can the government contain the unrest this time?
And is it able to deal with its root causes?
A lawyer for the family of George Floyd, whose death sparked unrest across the US, has accused a police officer of “premeditated murder”.
Minneapolis policeman Derek Chauvin has been charged with third-degree murder, but lawyer Benjamin Crump told CBS news it was a case of first-degree murder.
“We think that he had intent… almost nine minutes he kept his knee in a man’s neck that was begging and pleading for breath,” he said.
Several US cities have imposed curfews.
The Floyd case has reignited US anger over police killings of black Americans. It follows the high-profile cases of Michael Brown in Ferguson, Eric Garner in New York and others that have driven the Black Lives Matter movement.
“The fact that officer Chauvin kept his knee on his neck for almost three minutes after he was unconscious. We don’t understand how that was not first degree murder. We don’t understand how all these officers haven’t been arrested,” lawyer Crump said.
Three other officers present at the time have also since been sacked.
For many the outrage over George Floyd’s death also reflects years of frustration over socioeconomic inequality and segregation, not least in Minneapolis itself.
In video footage, Mr Chauvin, 44, can be seen kneeling on Mr Floyd’s neck for several minutes on Monday. Mr Floyd, 46, repeatedly says that he is unable to breathe.
There have been five nights of arson and looting in Minneapolis and the adjacent city of St Paul. Minnesota’s Governor Tim Walz said on Saturday he was deploying the full Minnesota National Guard for the first time since World War Two.
Governor Walz said racism in his state had created the conditions for Mr Floyd’s death.
The National Guard – the US reserve military force for domestic emergencies – said on Sunday that 5,000 of its personnel had been activated in 15 states and Washington DC. It added that “state and local law enforcement agencies remain responsible for security”.
In the CBS interview, lawyer Benjamin Crump also said “we now have the audio from the police bodycam and we hear where one officer says ‘he doesn’t have a pulse, maybe we should turn him on his side’, but yet officer Chauvin says ‘no, we’re going to keep him in this position’. That’s intent.
“Also, the fact that officer Chauvin kept his knee on his neck for almost three minutes after he was unconscious.”
The lawyer also said Mr Chauvin and Mr Floyd already knew each other before Mr Floyd’s death in custody.
He said the Floyd family was “notified by the owner of a club that Derek Chauvin was an off-duty police officer where George Floyd was a security guard, and so they had to overlap”.
What’s the latest on the protests?
Huge demonstrations have taken place in at least 30 cities across the US. They were largely peaceful on Saturday, but violence flared later in the day.
Besides Minneapolis and Los Angeles, the cities under night curfew include Atlanta, Chicago, Denver, Louisville, Richmond, San Francisco and Seattle.
One of the cities worst affected by unrest is Los Angeles. California Governor Gavin Newsom declared a state of emergency in the city and activated the National Guard.
The entire city is under curfew. Numerous shops have been looted, including on the famous retail avenues, Melrose and Fairfax, while overhead footage showed fires burning. Earlier police fired rubber bullets and hit protesters with batons. Hundreds of arrests have been made.
In New York City, police arrested about 350 people overnight and dozens of police suffered light injuries.
In Salt Lake City, a man aimed a bow and arrow at protesters and was attacked by the crowd, Reuters reported.
President Donald Trump’s national security adviser told our reporters “I don’t think there’s systemic racism” in the police.
Robert O’Brien said “there are some racist police, I think they’re the minority, I think they’re the few bad apples and we need to root them out”.
On Saturday evening, President Trump said Mr Floyd’s death had “filled Americans with horror, anger and grief”.
He also denounced the actions of “looters and anarchists”, accusing them of dishonoring the memory of Mr Floyd. What was needed, he said, was “healing not hatred, justice not chaos”. “I will not allow angry mobs to dominate – won’t happen,” he added.
Thousands took part in an anti-racism protest march in central London on Sunday, defying social distancing rules imposed because of coronavirus. They gathered in Trafalgar Square, then the crowd moved on to the US embassy.