LONDON, March 3 (Reuters) - The Russian-flagged liquefied natural gas tanker Arctic Metagaz is on fire in the Mediterranean, maritime security sources said on Tuesday, while Malta's armed forces said the vessel's crew had been located safe in a lifeboat within Libya's search-and-rescue region.

Add Yahoo as a preferred source to see more of our stories on Google. Ukraine said Monday that it carried out an underwater drone attack on a Russian submarine in port. New satellite imagery shows damage at the Novorossiysk port following an explosion.