April 16 (UPI) -- The Russian tanker Universal, linked to the so-called "shadow fleet," was detected sailing in the North Atlantic heading west toward Cuba, according to maritime tracking platforms. The vessel is owned by Sovcomflot, the same company that operates the Anatoly Kolodkin, which arrived in Cuba on March 31 with about 730,000 barrels of crude. A U.S. embargo and sanctions on the tanker were not enforced. The Russian shadow fleet is a network of older, lightly regulated tankers that