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.

The apparent incursion comes 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 Tsahkna 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."

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Russian officials did not immediately comment.

Russia'

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