US Law Enforcement Official: Airlines Flying to Russia Warned of Bomb Materials in Toothpaste Tubes

Winter Olympics opening ceremony taking place tomorrow

Airlines flying to Winter Olympics host Russia are being warned to watch for toothpaste tubes containing materials that could used by terrorists to make a bomb, according to a U.S. law enforcement official.

The official declined to elaborate on the intelligence that sparked the alert, which was sent yesterday to U.S. and foreign carriers, just two days before the start of the 2014 games in Sochi, Russia. The official wasn't authorized to discuss the warning publicly and asked for anonymity.