One killed in accident at Indian nuclear submarine building yard
Worker killed and two injured in latest deadly incident involving country's marine fleet

One Indian worker was killed in an accident during construction of a nuclear submarine, the latest in a string of deadly mishaps to hit the navy.
Two other workers were injured in the accident on Saturday at a ship building centre in the southeastern coastal city of Vishakhapatnam, the Defence Research and Development Organisation statement said.
The incident occurred when one of the hatches flew off and hit the workers during pressure testing of a part of the submarine.
"One person, a contractual worker lost his life in the accident. Two others were injured and are under treatment," the organisation said.
The accident came just one day after a toxic gas leak on board the yet-to-be commissioned INS Kolkata naval ship killed an officer and injured two others during trials in Mumbai on Friday.

The navy's chief resigned last month over another accident, a fire on board a submarine that killed two officers, during exercises off the Mumbai coast.