One naval officer died in a fire on Russia's Baltic Fleet frigate the Neukrotimy (Indomitable) on Monday, a senior Navy official said according to RIA Novosti.
"The body of an officer was discovered during a thorough search of the ship," Captain 1st Rank Igor Dygalo, an aide to the Russian Navy commander, said.
Earlier reports said no one had been hurt in the fire that broke out early on Monday on the frigate anchored at Baltiisk, the Baltic Fleet's main base.
Dygalo said the frigate, at the end of its operational life span, was due to be taken out of service, adding there had been no weapons on board the ship when the fire started.
The Krivak-2 Project-1135 Neukrotimy, built in 1978, was damaged in 2005, when a practice mine exploded during rehearsals for Russia's Navy Day causing a 3-meter hole in the ship's hull and flooding the ship's engine room.