A minor fire broke out on an ocean-going tug Matanga which was undergoing repairs at the naval dockyard on Sunday afternoon. The tug is capable of towing two large vessels out of the harbour.
The fire broke out during a welding work in the ship, naval officials said in a statement.
Fire tenders were rushed to the spot to douse the flames. The extent of damage caused by the fire is being investigated.
No casualty took place in the incident, the officials said. A board of inquiry has also been ordered to investigate the incident, the officials added.
This is the 14th such incident involving a naval vessel in the last 10 months, including INS Sindhurakshak submarine which sank at the Mumbai harbour on August 18, last year, killing 18 personnel on board.