This is evidenced by the data of western sites.
As noted, for hours of exploration off the coast of the Kaliningrad region carried out the airliner RC-135W British Royal Air Force. At the same time, the airplane flew from Waddington airbase in England.
In turn, the second - a strategic reconnaissance aircraft of the US Air Force RC-135U with the onboard number 64-14847 and the call sign LIVE78, which rose from the Mildenhall airbase in the UK, flew around the maritime boundaries of the Murmansk region.
Meanwhile, the NATO airborne long-range radar detection and guidance aircraft AWACS monitored the Kaliningrad region while in the airspace of Lithuania and Poland.
Before that, from the Baltic Sea to the Kaliningrad region, the reconnaissance aircraft of the Swedish Air Force Gulfstream 4 with the airborne number 102002 and the call sign SVF622, departed from the Malmen airbase near the town of Linkoping.
Recall, as previously reported, "URA-Inform, NATO air liners, which are based in Estonia at the air base of Emary, will work out shaving flights over the country's territory.