The head of the country's navy announced on Monday that bigger submarines that displaced more than 12,000 tonnes of water when submerged would no longer be built.

The Kursk, once Russia's most modern nuclear submarine, sank in 2000 after one of its torpedoes leaked and ignited during naval exercises in icy Arctic waters.

All of its 118 crew members were killed in Russia's worst naval disaster, whose third anniversary the country marked earlier this month.

"We shall not build subs similar to the Kursk any more. The
maximum displacement for vessels belonging to the submarine fleet should be 12,000 tonnes," Admiral Vladimir Kuroyedov said on Monday.

The Kursk had a displacement of 24,000 tonnes when submerged.
 
Russia will launch the first of its fourth generation strategic
nuclear submarines, of the Borei class, in 2005, and it will be
equipped with weapons the following year, Kuroyedov said.
 
Kuroyedov was in Russia's far eastern region to attend
large-scale military exercises taking place off the country's
Pacific Coast.