Demonstrators marched through the streets of cities including Washington, New York, and Los Angeles.
In the nation’s capital, hundreds gathered in front of a newly erected fence that prevented them from entering a park outside the White House, which federal forces cleared using tear gas a day earlier to allow President Donald Trump to have a photo op in front of a church.
The federal government appeared set to crack down harder on the latest wave of protests in Washington.
“There will be even greater law enforcement resources and support in the region tonight,” Attorney General William Barr said on Tuesday.
Mostly peaceful demonstrations in previous days have sometimes descended into rioting and looting at night, causing destruction to property and hurting businesses.
Four police officers in St. Louis, Missouri, were injured by gunshots, as was an officer in Las Vegas, Nevada, during encounters with protesters overnight.
The exact circumstances remained unclear. (AFP)