印度一艘潜艇发生爆炸并着火
A number of crew have been killed in a huge explosion and fire on an Indian submarine berthed at a Mumbai dockyard, India's defence minister says.
印度国防部长称，一艘停靠在孟买某造船厂的潜艇发生剧烈爆炸以及火灾，若干船员丧生。
Smoke from the blaze could be seen in many parts of the city
AK Antony said he felt "sad about those navy personnel who lost their lives". Earlier the navy said it feared 18 sailors had been trapped on board.
The blast on the INS Sindhurakshak took place after midnight and fire-fighters spent four hours putting out the blaze.
Officials said the diesel-powered vessel was badly damaged.
Mr Antony gave no further details about how many people were killed and if he was referring to deaths among the sailors still trapped on the submarine.
But one navy official told the BBC that "surviving an explosion of this huge scale" was rare.
Many sailors managed to jump to safety after the blast. Rescue teams are on scene and some of the injured were taken to hospital. The submarine remains partly submerged at its berth.
It is unclear exactly what caused the explosion but dramatic images on Indian television showed a large fireball illuminating the sky. Smoke from the blaze could be seen in many parts of the city.
A naval inquiry has been set up to look into the causes of the incident, but officials told the BBC they suspect it to be the result of an on-board error and not an act involving any outside agency.
The Russian-built submarine was upgraded recently at a cost of $80m.
Russian firm Zvyozdochka, which refitted the submarine, said the vessel had been fully operational when it was returned to India in January.