North Korean state airline Air Koryo resumed its regular Thursday flight schedule between Pyongyang and Beijing on March 1 and will fly a limited flight schedule to Shanghai in April, schedules and informed sources said.

The airline stopped all its regular Thursday service to the Chinese capital in January and flew only intermittently in February, meaning there were just two regular Pyongyang-Beijing flights per week for the first two months of the year.

But on March 1 the airline resumed its weekly Thursday service, multiple sources said, with the arrival of JS251 corroborated by Beijing Capital International airport flight data.