Attack left two courthouse bailiffs dead along with suspect.
An attack on a Michigan County Courthouse on Monday afternoon has left three dead, including the shooter.
Two court bailiffs were killed in the attack, in which a sheriff's deputy along with another civilian were also injured.
"The suspect has been shot and killed," Berrien County Sheriff Paul Bailey told reporters, adding that the injured were being treated in hospital.
A local ABC News affiliate reported that a man who was being taken to prison grabbed a deputy's gun and started shooting at the courthouse in the city of Saint Joseph.
According to Michigan's Governor Rick Synder, "Michigan State Police has secured the scene at the Berrien County Courthouse and has begun an investigation into the shooting."
MSP has secured the scene at the Berrien County courthouse and started its investigation into the shooting that occurred this afternoon.— Governor Rick Snyder (@onetoughnerd) July 11, 2016
Buildings in the area were put on lockdown following the shooting, according to media reports.
The shooting comes days after five police officers were killed by a sniper in Dallas, Texas by an army veteran angered over the fatal police shootings of two black men in Louisiana and Minnesota.