The Sky news broadcaster reported citing a UK source that a Royal Air Force (RAF) fighter jet and a supporting Airbus Voyager tanker plane were sent out from near Newcastle just before 3 p.m. local time (14:00 GMT).
READ MORE: MiG-31 Fighter Jet Crashes in Nizhny Novgorod Region
The media added that a French fighter jet with a supporting tanker plane was also sent to help. The RAF refused to comment on the reports.
The Russian side, in its turn, has not commented on the information yet.