BUCHAREST, Sept 13 (Reuters) - Romania scrambled fighter jets on Saturday when a drone breached the country’s airspace during a Russian attack on Ukrainian infrastructure near the border, the defence ministry said.

A threat of drone strikes also prompted Poland to deploy Polish and allied aircraft and close an airport in the eastern city of Lublin, three days after it shot down Russian drones in its airspace with the backing of aircraft from its NATO allies.

The drone did not fly over inhabited areas and did not pose an immediate danger to the population," the statement said.