Censor.NET reports citing Interfax news agency referring to the data of western sites monitoring the movement of military aviation.
A multi-hour reconnaissance off the coast of the Kaliningrad oblast was carried out by the RAF RC-135W aircraft with the tail number ZZ665 and the call sign RRR7230 which took off from the British Waddington airbase.
The NATO's E-3A airborne early warning and control aircraft (AWACS) with the tail number LX-N90455 and the call sign NATO06 took off from the NATO airbase Geilenkirchen in Germany. The flight was carried out in Poland's airspace to the south-west of the Kaliningrad oblast and was aimed to conduct surveillance of the Russian territory.
Prior to that, the Swedish Air Force Gulfstream 4 reconnaissance aircraft with tail number 102002 and the call sign SVF622 approached the Kaliningrad oblast from the Baltic Sea. It took off from the Malmen Air Base situated near the town of Linköping.