The Minneapolis Police 3rd Precinct has been overrun by rioters amid wider protests over the death of George Floyd.
Police have issued a message via scanners saying the building on Lake Street "has been compromised," with officers being evacuated. After that message, they issued a formal statement on the situation.
"Shortly after 10:00 pm tonight, in the interest of the safety of our personnel, the Minneapolis Police Department evacuated the 3 Precinct of its staff," the statement reads. "Protesters forcibly entered the building and have ignited several fires."
At 11:30 p.m., the City of Minneapolis issued this warning: "We're hearing unconfirmed reports that gas lines to the Third Precinct have been cut and other explosive materials are in the building. If you are near the building, for your safety, PLEASE RETREAT in the event the building explodes."
Reports from the building show a large number of people inside and outside the police station.
A fire has since been set since, and is looking increasingly established./
The 3rd Precinct is where the four officers connected to the death of 46-year-old George Floyd worked, before they were fired on Tuesday.
There have been other buildings in the vicinity burned on Thursday evening, including the Max-It Pawn Shop. It follows on from the destruction of buildings including a Wendy's and AutoZone on Wednesday evening.
The Minnesota National Guard announced just after 10:40 p.m. that it has activated more than 500 soldiers to protect life, preserve property and the right to peacefully demonstrate in the Twin Cities.
"A key objective is to ensure fire departments are able to respond to calls," the Guard said.
This is a developing story.