Estonia summoned the Russian ambassador on Tuesday to protest an "extremely serious" violation of its airspace by a Russian helicopter, the second time in less than two weeks that Tallinn has reprimanded Moscow's envoy.
It also expressed solidarity with fellow Baltic nation Lithuania, which Moscow says will be punished for banning the transit of some goods to the Russian exclave of Kaliningrad.
The Estonian foreign ministry said the helicopter had flown over a point in the south-east without permission on June 18.
