CLAYTON, Ga. — Authorities are investigating after they say a police officer in north Georgia fatally shot a man armed with a knife.

The Georgia Bureau of Investigation said in a news release that a Clayton police officer tried to pull over a speeding Honda Accord. The GBI says the car accelerated and a chase followed, ending in a crash on a private drive.

The GBI says the officer ordered the driver to stay in the car but the man exited through a rear window and climbed onto the car’s roof. The man advanced toward the officer, swinging a knife.

The GBI says the officer fired multiple shots at the man, who was hit and died at the scene.

The names of the officer and the man were not immediately released.