The Finnish Border Agency confirmed that Finnish airspace had been violated by a Russian plane last week, reports Yle news agency.
It’s reported that a Russian aircraft entered Finnish airspace for about one kilometer and was within the Finnish borders for about two minutes.
"The border guards were not able to identify the pilots who operated the plane. For this reason, it is not possible to bring charges," the statement said.
Fighters of the Finnish Air Force were scrambled last Monday to intercept three Russian aircraft over the Baltic Sea.