U.S. warns airlines about "toothpaste bomb" threats in Sochi Olympics

U.S. federal government has issued a warning to U.S. and some foreign airlines that fly to Russia for the Olympic Games about "toothpaste bomb" threats, multiple U.S. media reported on Wednesday.

The Department of Homeland Security has warned these airlines to be on the lookout for toothpaste tubes, which recent intelligence suggests might hold explosives and could be used to construct a bomb on board a plane, the reports said.