A North Korean passenger jet made an unusual round-trip flight to the country’s east coast on Thursday, flight tracking data shows, marking the first publicly broadcasted flight within the DPRK in nearly a year.

 The Air Koryo Tupolev-204 likely took off from near Pyongyang around 10 a.m. KST toward the east coast city of Hamhung, according to automatic dependent surveillance-broadcast (ADS-B) data from FlightRadar24. It then briefly disappeared from tracking data, only to reappear minutes later on a heading back toward Pyongyang.