The RAF scrambled two Typhoon jets to intercept Russian planes near the UK's airspace, the Ministry of Defence (MoD) said.
A spokesman for the RAF said: 'We can confirm that Quick Reaction Alert (QRA) Typhoon aircraft from RAF Lossiemouth scrambled this morning. Nothing, however, was intercepted, according to some military authorities.
The unidentified Russian plan was on a course towards the United Kingdom from the north, where it has been monitored by other Nato allies.
The closest the Russian jets came to the United Kingdom land was 40 nautical miles, or around 46 miles and were 30 nautical miles (34.5 miles) from British sovereign airspace.
"The Russian aircraft were initially monitored by a variety of friendly nation fighters and subsequently intercepted by the RAF in the North Sea".
Intercepted Two Tupolev TU-160 Blackjack bombers were escorted away from British airspace
The jets were scrambled from RAF Lossiemouth in Moray, Scotland, on Monday morning.
The Voyager - used to refuel jets in mid-air - was deployed from RAF Brize Norton and scoured the north coast near John O' Groats.
There has been some Russian military activity near the U.K.in recent months, forcing the U.K.to scramble jets and ships.
The RAF is yet to confirm the type of Russian planes as the "live operation" is still in progress.
Other details were not provided.
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