- Exercise is the first time that four missiles have been fired from sub of its kind
- Missiles fired have range of 6200 miles, has 10 warheads of 150 kilotons each
- Fired from Project 955 Borei-class strategic nuclear submarine Yuri Dolgoruky
- The submarines came into service last year and are Russian navy's latest
The Russian navy has launched four ballistic missiles from under the surface of the White Sea.
It is the first time four missiles have been simultaneously launched from a vessel of the kind used in the exercise, which according to reports was the biggest of its kind since the Cold War.
According to the TASS news agency, the Project 955 Borei-class strategic nuclear submarine Yuri Dolgoruky successfully test fired four Bulava intercontinental ballistic missiles.
Footage released by the the Russian Defence Ministry shows the enormous missiles emerging from the water.
They were aimed at designated targets in the Kura range in the Far Eastern Kamchatka region, the press service of the Russian Northern Fleet said on Tuesday, TASS reported.
The submarine Yuri Dolgoruky is the Project 955 Borey-class lead vessel and is armed with a set of 20 Bulava sea-launched intercontinental ballistic missiles and also with torpedoes.
The sub, which can also be armed with cruise missiles, has a full displacement of 24,000 tonnes, is about 160 meters long and 13 meters wide.
It can deliver 10 warheads of 150 kilotonnes each to a distance of 10,000 kilometers.
The Borei II-class, or Borei-A, sub was launched during a float out ceremony at the Sevmash Shipyards in Severodvinsk in northern Russia.
Construction began on the vessel in July 2012 and it is expected to be delivered to the Russian Navy next year.