"Two strategic missile carriers Tu-160 of Russian aerospace forces have performed a scheduled flight in the airspace over the neutral waters of the Barents and Norwegian Seas for more than 14 hours," the ministry said in a statement.
MiG-31 fighters have escorted the strategic aircraft, the ministry said.
The ministry added that long-range aircraft regularly fly over the neutral waters of the Arctic, North Atlantic, Black and Baltic Seas, and the Pacific Ocean, strictly observing international rules for the use of airspace.