Washington (dpa) - After the death of African-American George Floyd in a brutal police operation in Minneapolis, protests continue in major US cities. The CNN broadcaster reported demonstrations in New York, Los Angeles and Houston.

Demonstrators also gathered around the White House in Washington on Tuesday, a dpa reporter reported. There, security forces - including the military police - violently dissolved protests on Monday evening. While the police acted against demonstrators, Trump threatened to use the military to stop unrest if he appeared in the White House rose garden at the same time.

Riots were initially not reported on Tuesday during the day. Demonstrations against police violence, racism and social injustice have been going on for days in Washington, New York and other US cities. The trigger was Floyd's death in Minneapolis, Minnesota on Monday last week. In many US cities, the demonstrations have turned into rioting and looting. Many cities have curfews at night. In the metropolis of New York, it was extended until Sunday after new looting. It should enter into force on Tuesday at 8 p.m. (local time / 2 a.m.CEST).

A curfew should apply again in Washington on Tuesday from 7:00 p.m. Secretary of Justice William Barr announced that the security forces in the capital would be strengthened again on Wednesday night. Trump has condemned Floyd's death and stressed the right to peaceful protests. But he called on the governors of the states to crack down on troublemakers and otherwise threatened to send the army. According to the family, Floyd is said to be buried in Houston on Tuesday next week. He had grown up in the metropolis in Texas.