MOSCOW: A Russian cargo ship that ran into trouble on Monday (Dec 23) in the Mediterranean Sea and later sank was rocked by a series of three explosions in "an act of terrorism," state news agency RIA cited the vessel's owner as saying on Wednesday. Russia's Foreign Ministry said on Tuesday that the "Ursa Major," built in 2009, sank after an explosion ripped through its engine room and that two of its 16 crew were missing. RIA cited Oboronlogistika, the ship's ultimate owner and a company that