Estonia summoned a Russian diplomat to protest after three Russian fighter aircraft entered its airspace without permission Friday and stayed there for 12 minutes, the Foreign Ministry said, just over a week after NATO planes downed Russian drones over Poland and heightened fears that the war in Ukraine could spill over.

Foreign Minister Margus Tsakhna said that Russia had already violated Estonian airspace four times this year “but today’s incursion, involving three fighter aircraft entering our airspace, is unprecedentedly brazen.”

His ministry said that the incursion took place over the Gulf of Finland and three Russian MIG-31 fighters were involved.

The Russian charge d’affaires was summoned and given a protest note, a ministry statement said.

Earlier Friday, the head of Britain’s

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