Iran’s Ports and Maritime Organization has confirmed that all crew members of the country’s burning oil tanker in the East China Sea are dead.

The organization’s chief said all indications show that the crew lost their lives due to the initial blast on the ship and the resulting toxic gases.

He added that rescuers have failed to enter the ship to salvage the bodies due to repeated blasts, adding that the vessel is on the verge of sinking.

New blasts ripped through the ship on Sunday after flames reached its formerly intact crude tanks, sending flames hundreds of meters into the air.

The Sanchi tanker burst into flames after hitting a freighter in the East China Sea on January 6.

Three bodies of the ship’s crew members have been recovered, but remain unidentified. The vessel was carrying 30 Iranians and two Bangladeshis.