An Iranian Navy resupply vessel sank in the Gulf of Oman after a fire

(CNN) – One of the largest ships in the Iranian Navy caught fire on Wednesday and sank in the Gulf of Oman, according to the semi-state news agency Fars.

The fire on the huge training and logistics ship – dubbed “Khark” – started early Wednesday morning.

“Despite 20 hours of relentless efforts by civilian and naval military rescue teams, the rescue operation of the training support vessel Khark was ineffective due to the spread of fire in different parts,” said Fars in your report.

The ship sank off the coast of the port of Jask, in southern Iran. All crew members were evacuated and there were no casualties, Fars added.

The cause of the fire remains unclear. The military vessel was being deployed in international waters for a naval training operation when one of its systems caught fire near Jask, Fars reported.

He had been in service for more than four decades and had participated in numerous training operations.