Estonia's President Alar Karis, right, arrives to lay flowers at the memorial wall in Kyiv, Ukraine, on Sept. 13, 2024. (AP file photo)

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. It happened 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 Russia violated Estonian airspace four times this year “but today’s incursion, involving three fighter aircraft entering our airspace, is unprecedentedly brazen.”

Estonian Defense Minister Hanno Pevkur also said that the government had decided “to start consultations among the allies” according to NATO’s article 4, he wrote on X, after Russian jets “violated our airspace yet again.”

Russian officials did not immediately comment.

Europeans rattled

Russia’s violation of Poland’s airspace was the most serious cross-border incident into a NATO member country since the war in Ukraine began with Russia’s all-out invasion in February 2022. Other alliance countries have reported similar incursions and drone crashes on their territory.

The developments have increasingly rattled European governments as U.S.-led efforts to stop the war in Ukraine have come to nothing.

The European Union’s foreign policy chief Kaja Kallas called Friday’s incursion “an extremely dangerous provocation” that “further escalates tensions in the region.”

Estonia, along with fellow Baltic states Lithuania and Latvia and neighboring Poland, are staunch supporters of Ukraine.

Italians respond

The Russian MIG-31 fighters entered Estonian airspace in the area of Vaindloo Island, a small island located in the Gulf of Finland in the Baltic Sea, the Estonian military said in a separate statement.

The aircraft did not have flight plans and their transponders were turned off, the statement said, nor were the aircraft in two-way radio communication with Estonian air traffic services.

Italian Air Force F-35 fighter jets, currently deployed as part of the NATO Baltic Air Policing Mission, responded to the incident, according to the statement.

In a post on social media, NATO spokesperson Allison Hart described the incident as “another example of reckless Russian behavior and NATO’s ability to respond.”

NATO fighter jets scramble hundreds of times most years to intercept aircraft, many of them Russian warplanes in northwest Europe flying too close to the airspace of its member countries, but it’s rarer for planes to cross the boundary.

‘No evidence’ for peace

Earlier Friday, the head of Britain’s foreign intelligence agency said there is “absolutely no evidence” that Russia’s President Vladimir Putin wants to negotiate peace in Ukraine.

Richard Moore, chief of the Secret Intelligence Service, or MI6 as it is more commonly known, said Putin was “stringing us along.”

“He seeks to impose his imperial will by all means at his disposal. But he cannot succeed,” Moore said. “Bluntly, Putin has bitten off more than he can chew. He thought he was going to win an easy victory. But he — and many others — underestimated the Ukrainians.”

The war has continued unabated in the three years since Russia invaded its neighbor. Ukraine has accepted proposals for a ceasefire and a summit meeting, but

Moscow has demurred.

U.S. President Donald Trump said Thursday during a state visit to the United Kingdom that Putin “has really let me down” in peace efforts.

MI6 unveils dark web portal

The spy chief was speaking as MI6 unveiled a dark web portal to allow potential intelligence providers to contact the service. Dubbed “Silent Courier,” the secure messaging platform aims to recruit new spies for the U.K., including in Russia.

“To those men and women in Russia who have truths to share and the courage to share them, I invite you to contact MI6,” Moore said.

Not just Russians but “anyone, anywhere in the world” would be able to use the portal to offer sensitive information on terrorism or “hostile intelligence activity,” he said.

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AP European security correspondent Emma Burrows in Vilnius, Lithuania, and AP writer Lorne Cook in Brussels contributed.

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Follow AP’s coverage of the war in Ukraine at https://apnews.com/hub/russia-ukraine