A medical examiner in Atlanta, Georgia, has declared the death of an African-American man to be homicide after he was shot in an encounter with police.
Rayshard Brooks died while fleeing from two white police officers in a restaurant car park late on Friday.
Protests erupted after his death, weeks after another black man, George Floyd, was killed in custody in Minneapolis.
Atlanta's police chief quit and the police officer suspected of shooting Mr Brooks was fired.
Following his death, the Wendy's drive-through restaurant where he was stopped was set on fire on Saturday.
Thousands of people joined Black Lives Matter protests across the US at the weekend.
In Chicago, a statue of the first US President, George Washington, was spray-painted with the words "slave owner".
Washington was an active slave holder for 56 years, but spoke frequently of his desire to end the practice. He was the only founding father and commander-in-chief to liberate his slaves – he owned more than 300 – when he died in 1799.
Graffiti covers the more than 100 year old George Washington statue on the Southside.
Messages in red spray paint read “Slave Owner” “Burn the Whitehouse down” & “God bless AmeriKKKa”
Some neighbors want the statue to go, others say its part of history. pic.twitter.com/ePlN5JyAlr
— Alexis McAdams ABC-7 (@AlexisMcAdamsTV) June 14, 2020
End of Twitter post by @AlexisMcAdamsTV
Crowds also gathered again in Washington DC near the White House while in Los Angeles, a large number of LGBT protesters marched with rainbow flags to denounce what they said was police brutality, racism and transphobia.
And anger over the killing of Mr Floyd, who died as a police officer held his knee on his neck on 25 May, fuelled new protests over the weekend in the UK.
What is the latest on the Atlanta shooting?
On Sunday evening, more than 100 people turned out in the rain at the site of the shooting for a peaceful protest.
According to the Fulton County medical examiner, the manner of death of Rayshard Brooks was "homicide." He suffered two gunshots to the back that caused organ injuries and blood loss.
Fulton County District Attorney Paul Howard told CNN that three charges could apply against sacked police officer Garrett Rolfe: murder, felony murder and aggravated assault.
"But I believe in this instance, what we have to choose between, if there's a choice to be made, is between murder and felony murder," Mr Howard said.
The Georgia Bureau of Investigations (GBI) says officers were called to the fast-food restaurant because Mr Brooks had fallen asleep in his car, which was blocking the drive-through lane.