Polish Army: A Russian Mi-8 helicopter flying from the Kaliningrad region breached Polish airspace north of Berniewo at 11:08 a.m. on September 23. The invasion reached a depth of about 300 meters and lasted 42 seconds.

Polish Army: A Russian Mi-8 helicopter flying from the Kaliningrad region breached Polish airspace north of Berniewo at 11:08 a.m. on September 23. The invasion reached a depth of about 300 meters and lasted 42 seconds.