06.17 - 06.23. On June 17 – 23 NATO fighter aircraft conducting the NATO Air Policing Mission in the Baltic states were scrambled two times to identify and escort military aircraft of the Russian Federation in international airspace over the Baltic Sea. On June 17 NATO Baltic Air Policing fighter aircraft intercepted one AN-24 flying from Kaliningrad to the mainland of the Russian Federation without using its onboard transponder, according to a pre-filed flight plan, maintaining radio communication with the regional air traffic control centre. On June 22 NATO fighter aircraft intercepted one TU-154 and two SU-24MRs and two SU-30SM in its escorts flying from Kaliningrad to mainland Russia. The TU-154 had is onboard transponder on, did not have the flight plan, did not maintain radio communication with the regional air traffic control centre. The two SU-24MRs and the two SU-30SMs had their onboard transponders off, did not have the flight plans, did not maintain radio communication.