Protesters in the nation's capital breached the complex of the Treasury Department and spray painted the area, a law enforcement source tells CNN.
Some of the protesters were briefly detained by the US Secret Service but eventually let go.
By Melissa Macaya, Mike Hayes, Fernando Alfonso III, Daniella Diaz, Jessie Yeung, Steve George, Ivana Kottasová and Nick Thompson, CNN
From CNN's Noah Gray
Protesters in the nation's capital breached the complex of the Treasury Department and spray painted the area, a law enforcement source tells CNN.
Some of the protesters were briefly detained by the US Secret Service but eventually let go.
Live images from the standoff inside the CNN Center shows several more police officers joining the barricade as protesters continue to throw objects from the Marietta Street entrance.
At least 18 police officers are currently holding the line with shields as the protest continues. Protesters are standing on the sidewalk just outside the entrance.
A man with a skateboard has repeatedly struck the glass next to the revolving doors in an attempt to break it.
Atlanta Mayor Keisha Lance Bottoms was visibly angry at a news conference during the Atlanta protests Friday, telling protesters to "go home" after they became violent and a police officer was hurt.
"What I see happening on the streets of Atlanta is not Atlanta. This is not a protest, This is not in the spirit of Martin Luther King, Jr. This is chaos. A protest has purpose. When Dr. King was assassinated, we didn't do this to our city," she said. "If you want change in Amerca, go and register to vote ... that is the change we need in this country."
She added: "If you care about this city then go home."
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A smoke bomb appears to have been thrown at police among several other objects as they stood inside CNN Center, video from CNN crew Nick Valencia and Kevin Conlon shows.
A group of protesters stands outside the entrance on Marietta Street as police continue to have objects thrown at them.
One person was taken into custody by police and had what appeared to be a zip tie put around his wrists.
The Atlanta Police Department has a precinct inside CNN Center.
An officer was struck by an unknown object and is down in CNN Center, according to CNN's Nick Valencia and Kevin Conlon, who are just inside the stairwell at the entrance of the building.
The crew moved inside behind police as tensions between protesters and police boiled over outside CNN Center.
On the Marietta Street side of the building, police are holding off protesters who have broken doors and windows and continue to throw objects.
Police just inside the building are currently engaged in a standoff with protestors who are assembled on the sidewalk along Marietta Street.
CNN's Sara Sidner said protesters are being told that if they stay past curfew they will be arrested. The curfew in Minneapolis and Saint Paul began at 8 p.m. CT.
During her live shot, protesters could be seen running across the street when police officers raised their arm to throw smoke or gas.
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From CNN's Hollie Silverman
At least one police officer responding to a protest outside the CNN Center in Atlanta, Georgia, was struck in the head with an object, according to CNN producer Kevin Conlon, who is on scene with correspondent Nick Valencia.
The protest continues with demonstrators facing off with officers wearing helmets and body coverings.
Protesters have thrown multiple objects, the CNN crew on scene reports.
Police are giving orders to disperse to a large group of protesters outside CNN Center in Atlanta, Georgia.
A large number of police officers in helmets are creating a blockade. They are facing off against protesters holding signs.
In video taken by CNN, officers were seen handing out zip ties to other officers.
Ben Crump, the attorney representing George Floyd's family, said his family was "relieved" the officer who placed his knee on his neck was arrested but believed he should be charged with first-degree murder.
"The family does not trust the Minneapolis police department or anyone affiliated with the Minneapolis police department," Crump said. "We understand they did the same thing to Eric Garner and we're not going to allow that to happen this time."
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