On April 6–12 fighter aircraft of the NATO Air Policing Detachment were scrambled in response to international flight regulation violations five times.
On April 8 the NATO Air Policing Detachment were scrambled to intercept one IL-20 flying from Kaliningrad and back via international airspace with its onboard transponder switched off, without the flight plan and without maintaining communication with the regional air traffic control centre.
On April 9 NATO fighter aircraft responded to one IL-20 flying from Kaliningrad and back with its onboard transponder switched off, without the flight plan and not maintaining radio commination.
On April 9 NATO fighter jets were dispatched to identify and escort one IL-20 flying via international airspace from Kaliningrad and back. The crew kept the onboard transponder switched off, had no flight plan and were not maintaining radio communication.
On April 10 fighter aircraft guarding the Baltic airspace intercepted two SU-30SM flying from Kaliningrad and back through international airspace. Their onboard transponders were switched off, the crews had no flight plans and were not maintaining radio communication.
On April 12 NATO fighter jets were scrambled to identify and escort one AN-26 flying from mainland Russia to Kaliningrad via international airspace, its onboard transponder switched off , without the flight plan and not maintaining radio communication.
