Protesters overtake police building as outrage grows over the death of George Floyd, an unarmed Black man.

Protests erupted across the United States on Thursday night as anger over the death of George Floyd, an unarmed Black man, intensified, with some demonstrators gaining access to a police precinct in Minneapolis, Minnesota, and setting sections of the building on fire.

Floyd died on Monday after a white Minneapolis police officer used his knee to pin Floyd’s neck to the ground for several minutes.

A video of the incident shows Floyd pleading with officers, saying “I can’t breathe” before going motionless with the officer’s knee still on his neck.

The four officers involved were swiftly fired, but Floyd’s family, community leaders and residents are calling for arrests to be made.

“These officers, they need to be arrested right now, the people want justice right now,” Philonese Floyd, George’s brother, told CNN on Thursday morning.

“They need to be convicted and get the death penalty,” Philonese said.

Hundreds of protesters marched in downtown Minneapolis for a third night on Thursday, demanding justice and an end to police violence.

“Say his name. George Floyd,” protesters chanted. “I can’t breathe.”

Video shared on social media showed protesters stopping their march at one point, kneeling and raising a fist in a moment of silence.