London, Mar 15 (IANS): British and German fighter jets scrambled to intercept two Russian aircraft flying close to Estonia in a joint NATO mission on Tuesday – hours after a Russian plane downed a US drone over the Black Sea - amid fears of an escalation in the region, media reports said.

The RAF and German Typhoon jets were reacting to a Russian air-to-air refuelling aircraft after it failed to communicate with Estonian air traffic control in the Baltic Sea, and as it approached NATO airspace, the Daily Mail reported.

The Russian Il-78 Midas plane was intercepted as it was flying between St Petersburg and Kaliningrad. The NATO jets were later redirected to also intercept a Russian Russian Antonov 148 military transport aircraft that was also passing close to Estonian air space, the RAF said in a release on Wednesday, Daily Mail reported.

It was the first joint NATO air policing scramble carried out by the two countries, and comes amid a period of heightened tension in the region due to Russian President Vladimir Putin's ongoing invasion of Ukraine and his threats to Kyiv's western allies.

Russia today warned it will "consider any action with US weaponry as openly hostile" after the incident involving the drone in international airspace on Tuesday, which also came as Danish investigators said they had found a "suspicious object" beneath the Nord Stream 2 pipeline, parts of which were mysteriously destroyed last year, Daily Mail reported.