EXCLUSIVE Officially, China has denied the incident took place. It also appears Beijing refused to request international assistance for its stricken submarine.
According to a secret UK report the seamen died following a catastrophic failure of the submarine s oxygen systems which poisoned the crew. The captain is understood to be among the deceased.
The deaths are said to be the result of poisoning due to a system fault on the submarine as China was reportedly denied any international help for the underwater vessel