Remarkable scenes are again playing out in the United States as huge crowds again protest the death of George Floyd at the hands of police officers.
In Washington, Black Lives Matter organisers say they are hoping to draw a million protesters. Thousands of protesters streamed into the nation's capital on Saturday (US time) for what was expected to be the city's largest demonstration yet against police brutality.
And new footage shows thousands of people in Philadelphia protesting against racism and police brutality.
Video from NBC10 Philadelphia shows an enormous crowd in the heart of the city.
It's the largest protest in the city yet over the the death of George Floyd.
There have been no reports of violence during the protest.
Philadelphia Police Commissioner Danielle Outlaw told demonstrators she wanted to "hear from the people".
"The only way for us in leadership, especially in the Police Department, to find out exactly what needs to be done, is to come to the people, and hear from the people what we're supposed to be doing."
In Washington, authorities have expanded the fenced security perimeter around the White House, which now extends to the outskirts of a park complex known as the Ellipse, near the National Mall.
It was not clear how many would show up for the protests on Saturday (US time), but #1MillionDCSaturday was trending on Twitter in a call for 1 million people to march on the capital.
Army Secretary Ryan McCarthy said local officials were estimating a crowd of 100,000 to 200,000 protesters.
Military vehicles and officers in fatigues closed off much of downtown Washington to traffic before the planned march, which authorities estimated would attract up to 200,000 people outraged by Floyd's death 12 days ago at the hands of police in Minneapolis.
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Large protests also took place across the US and in major cities overseas, including London, Paris, Berlin and Sydney.
The dozens of demonstrations capped a week of nearly constant protests that swelled beyond anything else the nation has seen in at least a generation. After frequent episodes of violence in the early stages following Floyd's death, the crowds in the US shifted to a calmer tenor in recent days.
On a hot, humid day in Washington, throngs of protesters gathered at the Capitol, on the National Mall and in residential neighbourhoods. Many groups headed toward the White House, where President Donald Trump was.
The crowd erupted in applause as Mayor Muriel Bowser walked along the portion of 16th St that she renamed Black Lives Matter Plaza.
Art Lindy, a fifth-generation Washingtonian, shouted "Vice President Bowser" as the mayor strolled by. He was referring to her defiant response to Trump's taunts.
Bowser "has done an incredible job standing up to the face of federal power," the 56-year-old construction manager said.
Washington has seen daily protests for the past week — largely peaceful. The White House has been fortified with new fencing and extra security precautions. The faint sound of protesters could be heard on Saturday from the executive mansion. Trump had no public events on his daily schedule.
The protests extended to his golf resort in Doral, Florida, just outside Miami, where about 100 protesters gathered. The demonstration was organised by Latinos for Black Lives Matter.
In Chicago, marchers chanted, carried signs and occasionally knelt silently.
In Raeford, North Carolina, a small town near Floyd's birthplace of Fayetteville, a long line of people formed outside a Free Will Baptist church, waiting to enter in small groups for a chance to look at his coffin. At a private memorial service later in the day, mourners sang along with a choir. On display at the front of the chapel was a large photo of Floyd and a portrait of him adorned with an angel's wings and halo.
The line of people waiting to view the coffin included families with young children and teenagers. One young woman wore a green and gold graduation cap and gown as she walked beside her parents. Most people wore surgical masks or cloth face coverings.
When a hearse bearing Floyd's coffin arrived, chants of "Black Power," "George Floyd" and "No justice, no peace," echoed from beneath the covered entrance.
"It could have been me. It could have been my brother, my father, any of my friends who are black," said a man in the crowd, Erik Carlos, of Fayetteville. "It was a heavy hit, especially knowing that George Floyd was born near my hometown. It made me feel very vulnerable at first."
In general, demonstrations in the US have shifted to a calmer tenor in recent days after frequent episodes of violence in the early stages after Floyd's death. Protesters and their supporters in public office say they are determined to turn the extraordinary outpouring of anger and grief into change, notably in regard to policing policies.
College student Maiya Mack, 19, who protested in Columbus, Ohio, said a key step would be effective discipline against police officers implicated in racist acts of violence.
"Police who have performed misconduct, they should be held accountable, not just you can still be at home, you can still get paid," she said.
Theresa Bland, 68, a retired teacher and realtor protesting at the Ohio Statehouse, had a broader agenda in mind.
"I'm looking at affordable housing, political justice, prison reform, the whole ball of wax," she said. "The world is so askew right now ... with people dying from the virus and people dying in prisons and people dying because there's not enough food."
There already have been some tangible steps.
In Minneapolis, city officials have agreed to ban chokeholds and neck restraints by police and to require officers to try to stop any other officers they see using improper force. In California, Governor Gavin Newsom ordered the state's police training programme to stop teaching officers how to use a neck hold that blocks the flow of blood to the brain.
Democrats in Congress are preparing a sweeping package of police reforms, which are expected to included changes to police-accountability laws, such as revising immunity provisions and creating a database of police use-of-force incidents. Revamped training requirements are planned, too, among them a ban on chokeholds.
The House is expected to vote by month's end. With Democrats in the majority, the bills will almost certainly pass the House. The outcome in the Senate is less certain. Republican Majority Leader Mitch McConnell has said the chamber would look at the issues, but he has not endorsed any particular legislation.
Meanwhile in New York, two Buffalo police officers were charged with assault on Saturday after a video showed them shoving a 75-year-old protester, who fell backwards onto the pavement and was hospitalised. Both pleaded not guilty to second-degree assault and were released without bail. The two were suspended without pay on Friday after a TV crew captured the confrontation.
In London, thousands of demonstrators endured cold rain to gather in Parliament Square, a traditional venue for protests. They knelt in silence and chanted Floyd's name before applauding his memory and then starting a march. Some clashes between protesters and police broke out near the offices of Prime Minister Boris Johnson.
In Paris, hundreds of people gathered at the Place de la Concorde in defiance of a police ban on large protests. Members of the multiracial crowd chanted the name of Adama Traore, a black man whose death while in police custody a few years ago has been likened by critics of French police to Floyd's death in Minnesota.