Torrential rain that caused flooding and mudslides in towns east of Tokyo left at least nine people dead and added fresh damage in areas still recovering from recent typhoons.
Rescue workers were looking for one person still missing in Chiba. Another person was unaccounted for in Fukushima, farther north, which is still reeling from damage wrecked by Typhoon Hagibis earlier this month.
The death toll included eight people in Chiba and one in Fukushima.
While rains and floodwater subsided, parts of Chiba were still inundated. About 4,700 homes were out of running water and some train services delayed or suspended.
In the Midori district in Chiba, mudslides crushed three houses, killing three people who were buried underneath them. Another mudslide hit a house in nearby Ichihara city, killing a woman. In Narata and Chonan towns, three drivers drowned when their vehicles were submerged.