North Korean passenger planes and Kim Jong Un’s private jet appeared to be on the move at Pyongyang International Airport on Thursday, just hours after the country launched a long-range missile from the airport’s runway, according to NK Pro analysis of satellite imagery.

The activity once again raises questions about safety standards at the primary entryway for visitors to the country, given the dangers that missile launches pose to aircraft.

An Air Koryo Il-76 cargo plane also appeared at the airport of the northern city of Samjiyon on Friday morning, Planet Labs imagery