Three Russian MiG-31 fighters violated Estonian airspace over the Gulf of Finland on Friday, Estonia said, triggering complaints of a dangerous new provocation from the EU and NATO.

Italian F-35 fighters attached to NATO's air defence support mission in the Baltic states were scrambled to intercept the Russian jets and warn them off, Estonian and Italian officials said.

"Three Russian fighter MiG-31 entered Estonian airspace in the Vaindloo Island area without permission, and remained there for approximately 12 minutes," the Estonian defence forces said.

"The fighter jets did not have flight plans, and their transponders were switched off. At the time of the airspace violation, the fighter jets did not have two-way radio communication with Estonian air traffic control."

NATO spokespers

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