The Russian Defense Ministry said Thursday's maneuvers featured launches of ballistic missiles by the navy's nuclear submarines from the Barents Sea and the Sea of Okhotsk.
As part of the drills, long-range bombers also fired cruise missiles, the ministry said, adding that all missiles hit their designated practice targets.
300,000 troops, 900 tanks: It’s called the most massive Russian military exercise since the Cold War, and China’s role is growing
The upcoming exercise will be three times the size of last year's closely watched drills and perhaps bigger than the Soviet Union's largest training event.
It added that Russia's early warning system successfully spotted and tracked all launches.
The Defense Ministry noted that the exercise offered a chance to test the chain of command from its main control room down to military units.
The drills are the latest in a series of Russian war games conducted amid rising tensions with the West.
You might have been hearing about Vostok 2018 these past few days, and you might have even seen one or two ground-level photos, but have you seen Vostok from space? Take a look.