A fire in the battery compartment and its spread caused the deadly incident on a Russian deep-water apparatus on Monday, Russian Defense Minister Sergei Shoigu said Thursday.
The nuclear reactor on board was not affected, the minister said.
Fourteen sailors died in the fire that broke out on a Russian research submarine in Russian territorial waters on Monday.
The submariners on board were unique military specialists and highly skilled professionals who were conducting a survey of the Barents Sea floor
Some details about the submersible are classified and will not be made public, a Kremlin spokesperson said on Wednesday. (Xinhua)
source: api.en.pdnews.cn