After a night of fire and fury across the nation, officials announced more curfews Sunday as police in several cities significantly increased their use of force and hundreds of people were arrested.

Police cars and government buildings were set aflame, windows shattered, stores ransacked and monuments vandalized, and authorities in riot gear fired pepper pellets, tear gas and rubber bullets at demonstrators who had amassed to protest the death of George Floyd, a black man killed at the hands of police.

Here are some significant developments:

  • Thousands of people gathered in London’s Trafalgar Square in support of U.S. demonstrators, according to the Associated Press.
  • Curfews were enacted in more than two dozen cities, and about 5,000 National Guard troops have been activated in 15 states and the District of Columbia.
  • Some of President Trump’s allies are urging him to address the nation about the intensifying unrest. Trump’s presumptive Democratic rival, former vice president Joe Biden, released his own statement condemning the violence that followed the in-custody death of Floyd in Minneapolis.
  • Federal buildings in the nation’s capital were vandalized, and clashes erupted for a second day between Secret Service agents and demonstrators outside the White House.
  • Rep. Alexandria Ocasio-Cortez (D-N.Y.) slammed New York Mayor Bill de Blasio (D) for saying he would not “blame” New York City police officers who appeared to have driven their vehicle into a throng of protesters.
  • Saturday’s protests came one day after fired Minneapolis police officer Derek Chauvin was charged with third-degree murder and manslaughter in Floyd’s death. Chauvin, who is white, was captured on video pressing his knee onto Floyd’s neck for more than eight minutes.