Shoe bomb terror alert for airlines, Homeland Security says

A traveler takes off her shoes at an airport security checkpoint in this undated file photo.

February 20, 2014 7:48:18 PM PST
For the second time in three weeks, airlines are being warned by the government about a potential terror threat.

The Homeland Security Department is warning that terrorists could try to hide explosives in shoes. New intelligence suggests terror groups are working on plans for a new kind of shoe bomb, which prompted Homeland Security to warn airlines to be on the lookout for such devices on oversea flights to the U.S.

There is no known plot or specific threat, but passengers may undergo more searches.

Earlier this month the agency warned airlines with flights to Russia to be on the lookout for explosive devices possibly hidden inside toothpaste.

The Associated Press contributed to this report. All rights reserved.