An Iranian oil tanker has sunk after burning for more than a week following a collision with a cargo ship in the East China Sea. <br/><br/>Iranian officials now say all 32 crew members – 30 Iranians and two Bangladeshis – on the tanker are dead.<br/><br/>Chinese state media today said the tanker had suddenly ignited around noon, adding that large amounts of oil are burning in the surrounding waters. The tanker had been drifting south-east towards Japan following the accident. <br/><br/>