Protests have also erupted in multiple cities across the United States over the death of Floyd. Local media say more protests are expected to take place across the country through the weekend.

WASHINGTON, May 30  -- Violent protests continued spreading across the United States on Friday, the fourth straight day after George Floyd, an unarmed black man, pleaded "I can't breathe" before dying in police custody in Minneapolis, the biggest city in the midwest state of Minnesota, on Monday.

The White House went into lockdown on Friday evening as hundreds of protesters gathered outside. One protester sprayed the Freedman's Bank Building while some other protesters clashed with Secret Service personnel, witnesses said. Videos showed some protesters burnt flags and knocked over barricades.

"Secret Service personnel are currently assisting other law enforcement agencies during a demonstration in Lafayette Park (outside the White House). In the interest of public safety we encourage all to remain peaceful," the Secret Service tweeted. At least one person was reportedly taken into custody.

In downtown Atlanta, southern state Georgia, a demonstration that began peacefully became chaotic as protesters set a police car on fire, struck officers with bottles, vandalized the headquarters of CNN and broke into a restaurant, the USA Today reported.

The protesters spray-painted the large, iconic CNN logo outside the building, breaking a windowed entrance. One protester climbed on top of the sign and waved a "Black Lives Matter" flag to cheers from the crowd, said the report.