Police spray mace at protestors to break up a gathering near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. Police fired tear gas and bean bag rounds at crowds protesting the death of an unarmed black man in Minneapolis on Tuesday (May 26). REUTERS/Eric Miller

People gather near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. A Black Lives Matter march in Los Angeles stopped traffic on a major highway and video showed demonstrators climbing onto a police vehicle which drove away, hurling at least two demonstrators to the ground. REUTERS/Eric Miller

A woman holds her inhaler and leans on another person after being sprayed with mace by police officers during a protest near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. In Minneapolis , hundreds of protesters, many wearing face coverings, filled streets near the scene of the deadly encounter for a second day. REUTERS/Eric Miller

Police officers throw canisters to break up crowds of people protesting near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. Demonstrators pelted police with rocks, water bottles and other projectiles. REUTERS/Eric Miller

A woman pours milk on the face of a protestor who was maced by police officers during a gathering near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. REUTERS/Eric Miller

Police spray mace at protestors to break up a gathering near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. REUTERS/Eric Miller