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It was a unique discovery to say the least.

Transportation Security Administration baggage checkers last week discovered four land mines tucked inside of a passenger's checked bag at Salt Lake City International Airport.

Airport officials said someone doing military training decided to take them as a souvenir.

TSA spokeswoman Lorie Dankers said the devices set off the airport's explosive detector and officials had to clear the area and delayed four flights for about 19 minutes.

Crews determined the land mines were benign and removed them from the bag. No one was arrested.

However, Dankers said TSA officials wanted to remind passengers that land mines are among the prohibited items that aren't allowed on airplanes.

Janelle Stecklein