March 7 (UPI) -- Russian Project 949A Antey submarines will be armed with Kalibr missile systems following an upgrade project, according to state media reports.
The vessels, also known by their NATO reporting names Oscar I and Oscar II, are currently armed with P-700 Granit cruise missiles in addition to various anti-ship and anti-submarine weapons. The Kremlin's plans to improve the Soviet-era ships were announced by Russian Deputy Defense Minister Yuri Borisov.