New York: Police fired tear gas to try to disperse protestors outside the White House as violent clashes erupted in the United States capital to protest against the killing of an unarmed black man by a police officer.
Tear gas and flash bang devices were used against crowds who had gathered outside President Donald Trumps official residence.
The turbulence sparked by the death of George Floyd -- a black man who died after a white Minneapolis police officer pressed a knee into his neck for several minutes.
Police officer Derek Chauvin has been sacked and charged with his murder in Minneapolis.
Meanwhile, as many as 40 cities and Washington D.C. across the United States have imposed curfews on Sunday in response to the continuing protests against the death of African-American man George Floyd in police custody.
D.C. mayor Muriel Bowser has ordered a citywide curfew for the District of Columbia from 11 pm on Sunday, May 31, until 6 am on Monday, June 1.