CAIRO (AP) — A Russian-flagged tanker carrying liquefied natural gas exploded and erupted in flames before sinking in the Mediterranean Sea off the coast of Libya, authorities in the North African country said Wednesday. No casualties were reported.The tanker was under Western sanctions, suspected to be part of Russia’s shadow fleet of energy tankers trying to bypass sanctions imposed on Moscow over its war in Ukraine. The cause of the explosion was not immediately clear. According to the Libyan Maritime Authority, there was a “sudden explosions, followed by a massive fire” on the Arctic Metagaz on Tuesday while the LNG...