Two British fighter jets have flown their first defence mission over Poland after a Russian drone incursion into the country’s skies.

The flight was part of NATO 's operation "Eastern Sentry" , launched to bolster Europe's eastern flank after Poland shot down Russian drones earlier this month.

A Russian drone was intercepted flying over Romania days later, while three Russian jets entered Estonian airspace without permission for 12 minutes on Friday.

Image: One of three Russian MiG-31 fighter jets in images shared by Sweden's armed forces. Pic: Swedish Armed Forces

The three incursions into NATO airspace fuelled concerns about the potential expansion of Russia 's three-year war in Ukraine and have been seen as an attempt by Moscow to test the military alliance

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