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.
Japan's tennis star Naomi Osaka dropped out of the US Open on Monday after suffering straight set losses to Belinda Bencic of Switzerland in the fourth round.
Bencic broke Osaka's serves from the outset. She accurately hit shots deep into the court and from near the net before winning the first set 7-5.
UNESCO's World Heritage Committee met in Azerbaijan's capital Baku on Sunday to screen 35 new nominations. A group of ancient burial mounds in Osaka Prefecture, western Japan is one of them.
The nominations include the Mozu-Furuichi Tumulus Clusters consisting of 49 mounds that were built between the late fourth and late fifth centuries.
A much anticipated meeting is underway on the sidelines of the G20. The leaders of the world's two biggest economies -- currently embroiled in a trade war -- are holding a one-on-one for the first time in nearly seven months.
US President Donald Trump and Chinese President Xi Jinping are holding talks in Osaka.
World leaders have gathered in Osaka for the G20 summit. The two-day meeting comes at a time of heightened global tensions, including the ongoing US-China trade war and the friction between Washington and Tehran.
The summit officially kicked off Friday morning with a welcome ceremony hosted by Japanese Prime Minister Shinzo Abe.