Flight operations at Osaka International Airport in western Japan have been disrupted after a knife was found during a security check.
Police were notified on Thursday morning that the knife was found in the bag of a male passenger who had gone through a security gate in the airport's southern inspection area, which is mainly used by All Nippon Airways.
The airport temporarily closed off the inspection area and asked passengers who had already gone through the security gate to go through it again for re-inspection.
The airport's operator says officials checked toilets and trash bins for any suspicious objects.
The airport remains crowded with passengers waiting to go through security checks again, and flight schedules have been disrupted.
The inspections began before noon.