Vladimir Putin has sent three fighter jets into a NATO member's airspace in an "unprecedentedly brutal" escalation.

The MIG-31 jets entered Estonia's airspace on Friday morning without permission from the NATO member. These Russia aircraft reportedly flew over the Vaindloo Island area and stayed in Estonian airspace for 12 minutes. The jets did not have two-way radio communication with local air traffic controllers and their transponders turned off.

Officials in Estonia blasted Putin's government for the violation and marked the incursion "unprecedentedly brutal". Estonia's Foreign Minister, Margus Tsahkna, said Russian diplomats had been summoned following the shocking escalation, ERR reports.

Tsahkna said: "Russia has violated Estonian airspace four times already this year, whic

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