A U.S. air marshal reportedly forgot her loaded gun in the bathroom of a Delta flight headed from England to New York and the gun was found by another passenger.
It reportedly happened on April 6 aboard a flight from Manchester to Kennedy International Airport.
The New York Times reports that the passenger gave the weapon to a member of the flight crew, who returned it to the air marshal.
The marshal waited days to report the incident to her superiors, according to the report. The Transportation Security Administration said it was investigating the incident.