One British official said that these investigations are a matter for the government of Gibraltar.
Malta-flagged Iranian crude oil supertanker "Delvar" is seen anchored off Singapore March 1, 2012. Western trade sanctions against Iran are strangling its oil exports even before they go into effect, a U.S. advisory body has found, amid warnings that any shortages will only push up crude prices and (photo credit: REUTERS/TIM CHONG)ByREUTERS
