Updated

Authorities say a subcompact machine pistol in a case has been discovered inside a storage closet in a locked management office at Kennedy International Airport.

A spokesman for the Port Authority of New York and New Jersey police said Thursday a contractor running cable through a ceiling in the office made the discovery at about 10:10 a.m.

Spokesman Joe Pentangelo said only a controlled group of people have access to the office, which is located in Terminal 1, outside the secure area. It was not immediately clear if the office was publicly accessible.

Pentangelo says the MAC 11 machine pistol wasn't loaded and no ammunition was found.

He said investigators are determining whether the pistol is even operable. The investigation is ongoing.