A naked man who was apparently unarmed was shot and killed by a police officer on Monday at an apartment complex in Chamblee, Ga., northeast of Atlanta, the authorities said.

The man was shot by a police officer who had responded to calls about a man acting deranged, knocking on doors and running naked through the Heights at Chamblee, Cedric L. Alexander, the DeKalb County deputy chief operating officer for public safety, said in a news conference.

The officer, who has been on the force for seven years, fired two shots at the man in a parking lot after the man charged at him and ignored his commands to stop, Mr. Alexander said. It appeared the man was unarmed, he said. The Georgia Bureau of Investigation is examining the shooting.

Both shots struck the man, and he died at the scene, Mr. Alexander said. He was identified as Anthony Hill, 27. The officer involved was placed on administrative leave pending the results of the investigation, Mr. Alexander said.