The US military has moved a team of Marines from Spain to southern Italy as a precautionary step in case the US embassy in Libya comes under threat, officials said Wednesday. The contingent of nearly 200 Marines is part of a newly-created \"crisis response\" force set up in the wake of a deadly attack on a US diplomatic outpost in the Libyan city of Benghazi in 2012. The State Department has requested the move amid growing concerns over violence in Libya, but there was ** imminent plan to evacuate the embassy in Tripoli, an administration official said. The team, equipped with four tilt-rotor Osprey aircraft as well as two KC-130 refueling tankers, arrived at the US naval air station in Sigonella in Italy on Tuesday, Pentagon spokesman Colonel Steven Warren told reporters.