A Russian-flagged liquefied natural gas (LNG) tanker under U.S. and UK sanctions caught fire in the Mediterranean early Tuesday following a reported explosion, with the fate of its crew initially unclear, according to Reuters and the Times of Malta. The vessel, identified as the Arctic Metagaz, was reportedly destroyed around 4 a.m. local time between Malta and Libya. Multiple sources cited by the Times of Malta said a series of explosions occurred before the crew was rescued and transferred to another vessel in the area. Shipping and maritime…