According Zapadny Aviatsionny portals that track the movement of military aviation, which refers to “Interfax”, the spy plane with the tail number and call sign 64-14844 ELGIN33 taking off from an air base Mildenhall in the UK, currently runs the job in the southern part of the Baltic sea.
Aircraft RC-135V US air force approached the coast of the Kaliningrad region. According to the Swedish aviation sites, the intercept from an air base in Kaliningrad region was sent to the Russian su-27 fighter.
From RC-135V included a transponder, and it can be seen on the radar.
This is the fifth such case in a week. The latest occurred on may 13. Then, reconnaissance aircraft number and call sign 62-4131 TANGY18 also close to the borders of the Kaliningrad region.
Three days ago, on may 12, British Typhoon fighters intercepted three Russian military transport plane in the skies over the Baltic. UK Ministry of defence reported that the An-26, An-12 and Il-76 were intercepted because they did not respond to requests by radio or transmitted identification code.