ATLANTA - A loaded gun magazine was found on a Frontier Airlines flight at Hartsfield-Jackson International Airport on Sunday afternoon, officials said.

What we know:

According to Atlanta police, officers assigned to the airport were called around 4:32 p.m. after a passenger found what appeared to be a loaded magazine containing 10 hollow-point rounds near seat 7A on an Airbus A320 aircraft parked at Gate C-6 in Concourse C.

The flight had just arrived from Cincinnati and was preparing for its return trip when the discovery was made. The magazine was reportedly marked with the initials "K H."

Airport police coordinated with the Transportation Security Administration, the Department of Aviation, Homeland Security, Frontier Airlines, and Atlanta police K-9 units to investigate the inci

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