A rare Air Koryo flight was detected crossing from North Korea’s capital city to its east coast on Tuesday, according to data from the ADS-B flight radar. The plane is the first flight detected in North Korean airspace in 2021 and one of only a handful of flights detected since the country shut down most air travel in Jan. 2020. The flight, labeled P-672, left an airport in Pyongyang at 9:14 a.m. KST, according to FlightRadar24. No arrival airport was listed for the plane, and the Antonov An-148 aircraft last gave off a signal at a high altitude at 9:43 a