Rome: Soldiers and paramilitary troops toting semi-automatic rifles patrolled outside the Colosseum and inside St. Peter's Square, as Italy joined the rest of Europe in beefing up security a day after terrorist attacks killed 127 people in Paris.

UK officials shut down a terminal of Britain's No. 2 airport for hours after a man was spotted discarding what looked like a firearm. Europe has been mostly free of land-based border checks for decades, but the attacks prompted authorities in countries from Belgium to Hungary to re-impose spot inspections of vehicles.