Karelia submarine of the Project 667BDRM/Delta IV class is preparing to resume service after an overhaul that included refueling of the reactor. The submarine carries 16 Sineva/R-29RM missiles, each capable of carrying four warheads. It is based in Gadzhievo, in the Northern Fleet.

Before going into this overhaul, Karelia was fairly active. It took part in the strategic exercises on 19 February 2022 and on 17 October 2019. It appears that it underwent a major overhaul in 2004-2009.

The TASS report quotes the head of the All-Russian Society to Support the Fleet as saying that the submarine can remain in service until 2038. There is no official confirmation of this information, though. The submarine was laid down in 1986 and entered service in October 1989.

Image: Karelia during the 19 February 2022 exercise (Ministry of Defense video)