Typhoon Hagibis unleashed torrents of rain and strong winds that left thousands of homes on Japan's main island flooded, damaged or without power. Kyodo News service counted 36 deaths caused by the typhoon with 16 people missing.
More than 100,000 rescuers, including 31,000 troops, were working into the night to reach people trapped after torrential rain caused landslides and filled rivers until they burst their banks.
Rugby World Cup matches, concerts and other events have been cancelled. Flights were grounded and train services halted.
The difficult relationship between two key US allies in Asia-Pacific has become a full-blown trade war, which is bound to have an impact on the global economy.
US president said a deal with China was getting closer just a day after he railed against Chinese "abuses" at the UNGA summit. Trump also said Washington and Tokyo had taken a major step towards sealing a comprehensive new trade deal.
Prince Akishino has officially declared the tournament open, with World Rugby chief Beaumont saying: "This is the moment we've all been waiting for ... we can all be very proud tonight. You have made history."
Instead of light, fluffy snowflakes, the crowd, consisting mainly of Tokyo 2020 staff, were pelted with fairly coarse shards of shaved ice at the canoeing test event.
Many activists say Japan's criminal code is outdated, underscoring gender inequality in the country, despite relatively high rates of female education and workplace participation.
The spectacular appointment as environment minister of the telegenic Shinjiro Koizumi, the 38-year-old son of much-loved former PM Junichiro Koizumi, set tongues wagging in Tokyo political classes as the Abe era draws to a close.
Hiroto Saikawa, the chief executive of scandal-plagued Nissan, acknowledged receiving inappropriate payments from the Japanese automaker but denied he ordered it or knew about it.
The accident, which halted services on a busy rail link to the capital, Tokyo, smashed the glass in the driver's compartment and derailed three of the train's eight carriages, video images showed, leaving the lead carriage badly twisted.
The Saudis might be considering Japan as a venue to go public with the world's most profitable company, and reap the benefits of the lower political and regulatory liabilities in the country.
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