The government of Gibraltar is awaiting confirmation that the Iranian VLCC Adrian Darya 1 has breached EU sanctions by discharging its oil in Syria.

Iran has said the vessel unloaded the cargo in the eastern Mediterranean, while satellite pictures suggest it is lying off Tartus in Syria.

Doubts remain about whether the oil actually has been discharged, however.

"We will await the outcome of the meeting between the [UK] foreign secretary, Dominic Raab, and the Iranian ambassador to London before jumping to judgement," Gibraltar said.