Nato member Estonia says three Russian jets violated its airspace for 12 minutes

Reported incursion by three fighter jets over Gulf of Finland comes amid increased tension on Nato’s eastern border

A file photo of a Russian MiG-31 aircraft. (AP Photo/Pavel Golovkin, File)

Three Russian military jets on Friday violated Nato member Estonia's airspace for 12 minutes in an "unprecedentedly brazen" incursion, its government said, amid rising tensions on the alliance's eastern flank.

The incident comes just over a week after more than 20 Russian drones entered Polish airspace on the night of September 9-10, prompting Nato jets to down some of them and Western officials to say Russia was testing the alliance's readiness and resolve.