Aecurity screeners at a Bozeman, Montana area airport failed to spot a gun in a passenger's luggage last month, but the man turned himself in when he realized his error, said an AP report.

Transportation Security Administration spokesman Dwayne Baird said in a written statement that the unidentified man became aware that he had the firearm in his carryon luggage as he was boarding Dec. 13 at Gallatin Field. The gun was confiscated and the passenger was allowed to continue on the flight.