Typhoon Dujuan, Japan's 25th typhoon of the year, battered Tokyo and surrounding prefectures with sustained winds of 130km/h (81mph) and gusts of 194km/h. The storm cut power for initially 50,000 people, with tens of thousands still without power on Tuesday morning. Most evacuation orders were lifted as the storm moved away, but a danger-to-life warning remained in place in Oshima Town.
The fatalities were from landslides in Kanagawa and Chiba prefectures, with six others reported missing, according to public broadcaster NHK. The storm forced the cancellation of hundreds of flights and rail services, as well as events including the Rock in Japan music festival and the Tokyo Game Show.
Japan's Prime Minister Sanae Takaichi offered condolences to those who lost their lives and said she had instructed officials to respond with utmost preparedness. She proceeded with a planned trip to the United States. The typhoon is the latest in a series of Pacific storms made more intense by a "super El Niño", which has warmed the ocean and fuelled storm formation.