Fighter jets have been scrambled for the second day in a row as aircrafts were seen ' approaching UK area of interest', the RAF has confirmed.
RAF Typhoons were dispatched from RAF Lossiemouth in Moray, with support from a Voyager air-to-air refuelling tanker based at RAF Brize Norton in Oxfordshire.
An RAF spokeswoman said: "Quick Reaction Alert Typhoon fighters from RAF Lossiemouth, supported by a Voyager Tanker from RAF Brize Norton, have been launched against aircraft approaching the UK area of interest.
"We will not be offering any additional detail on this ongoing operation until complete."
Today's scramble is known as a 'quick reaction alert', and are not uncommon.
It involves RAF crews shadowing Russian military aircraft near UK airspace and have occurred since the Cold War era.
Yesterday the Mirror reported that four Russian jets were "intercepted and escorted" out after approaching the north of Scotland.
The RAF confirmed that Typhoon jets “intercepted and escorted four Russian Bear aircraft” that were “approaching the UK area of interest”.
They confirmed the Russian jets did not enter UK airspace.
The Russian jets that were intercepted were a Tu-95, which is a large, four-engine turboprop-powered strategic bomber and missile platform.
On previous occasions, the RAF has said it responds to Russian military aircraft entering the UK Flight Information Region, which is the UK's controlled zone of international airspace because it can be a hazard to other air users, BBC reports.
Russian planes often do not talk to air traffic control to ensure they are visible to other air users and air traffic controllers on the ground.
It comes after a Russian warplane "breached the air space of Estonia" where hundreds of British troops are based as tensions continue to escalate in the region.
The US had accused Russia of planning to invade Ukraine, something Russia has repeatedly denied.
