There are fears of an environmental disaster in the East China Sea as a tanker continues to leak oil two days after colliding with a cargo ship.
Chinese officials have told state media the Sanchi is in danger of exploding and sinking.
Rescuers attempting to reach the site were being beaten back by toxic clouds, the transportation ministry has said.
The crew, 30 Iranians and two Bangladeshis, remain missing despite international rescue efforts.
Where, how and when did the accident happen?
The Panama-flagged Sanchi was bringing its cargo of oil from Iran to South Korea when it was in collision with the Hong Kong-registered freighter CF Crystal, carrying grain from the US, in the East China Sea, about 260km (160 miles) off the coast of Shanghai.
The collision, in the mouth of the Yangtze River Delta, occurred on Saturday evening.
The exact cause of the collision is not yet known.
What exactly is the Sanchi carrying?
The …