In a statement released on Thursday, Gibraltar Chief Minister Fabian Picardo said the territory’s police and customs agencies, aided by a detachment of British Royal Marines, had seized the Grace 1 vessel.
Gibraltar, he added, had reasonable grounds to believe that the tanker was carrying its crude oil shipment to the Banyas refinery in Syria.
“That refinery is the property of an entity that is subject to European Union sanctions against Syria,” Picardo said. “With my consent, our port and law enforcement agencies sought the assistance of the Royal Marines in carrying out this operation.”
A British Foreign Office spokesman welcomed what he called a “firm action by the Gibraltarian authorities, acting to enforce the EU Syria Sanctions regime,” which has been in place against the Arab country since 2011.
UK media claimed Refinitiv Eikon mapping indicates the ship had loaded “Iranian oil” on April 17 and sailed a longer route around the southern tip of Africa instead of via Egypt’s Suez Canal.
Syrian and Iranian officials have not yet commented on the report.