MOSCOW (AP) - A Russian nuclear-powered submarine successfully test-fired four intercontinental ballistic missiles on Tuesday, the navy said.

The navy said the submarine, named Yuri Dolgoruky after the medieval prince who founded Moscow, launched the Bulava missiles in a single salvo from a submerged position in the White Sea. The navy said the mock warheads the missiles carried reached their practice targets on the opposite side of Russia - the Kura shooting range on the far eastern Kamchatka Peninsula.
 
The exercise marked the first simultaneous launch of four Bulava missiles, which can carry multiple nuclear warheads and has a range of up to 9,300 kilometers (about 5,770 miles).

The Bulava has been commissioned by the Russian navy after a long cycle of development. Russian officials said the missile has a quicker start than its predecessors, helping it dodge missile defenses.
 
The Yuri Dolgoruky is one of the three new Borei-class submarines the Russian navy has. Another five such submarines are under construction to gradually replace some of the older Soviet-built ones.

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