North Korea’s continued missile tests present an “enduring safety hazard” for civil aviation, the U.S. transportation agency has warned, a week after a DPRK intermediate-range ballistic missile (IRBM) sailed over Japan. 

The Federal Aviation Administration (FAA) said in a notice posted Tuesday that “multiple flights” from Tokyo were canceled as a result of the Oct. 4 launch and that many DPRK missile tests go “beyond the boundaries” of North Korean airspace.