An Iranian tanker sailed through the Mediterranean toward Greece on Monday after it was released from detention off Gibraltar, and Tehran said that any at U.S. move to seize the vessel again would have “heavy consequences”, according to a report on Reuters news agency.

The Grace 1, renamed the Adrian Darya 1, left anchorage off Gibraltar about 11 p.m. (2100 GMT) on Sunday. Refinitiv ship tracking data showed on Monday that the vessel was heading to Kalamata in Greece and was scheduled to arrive next Sunday at 0000 GMT.

The seizure of the tanker by British Royal Marines near Gibraltar in July 4 on suspicion of carrying oil to Syria in violation of European Union sanctions led to a weeks-long stand-off between Tehran and the West. It also heightened tensions on international oil shipping routes through the Gulf.

Greek authorities had no immediate comment on the situation.

source: reuters