The incursion took place over the Gulf of Finland, where three Russian Federation Mikoyan MiG-31 fighter aircraft entered Estonian airspace without permission and remained there for a total of 12 minutes. «Russia has already violated Estonia's airspace four times this year, which in itself is unacceptable. But today's incursion, involving three fighter aircraft entering our airspace, is unprecedentedly brazen,» Foreign Minister Margus Tsahkna said. Three Russian fighter jets violated Estonia's air border near the Gulf of Finland island of Vaindloo on Friday morning; NATO fighters responded by escorting the Russian aircraft out of Estonian airspace. Lt. Liis Vaksmann from the press office of the joint headquarters of the Estonian defense forces told BNS that Italian Air Force F-35 fighter jets, currently stationed in Ämari as part of NATO's Baltic air policing mission, responded to the incident.