More than 430,000 households in the greater Tokyo area and regions close by are without electricity because of Typhoon Hagibis.
As of 11:00 p.m. on Saturday, the power is down for about 148,000 households in Kanagawa Prefecture west of Tokyo.
In Chiba Prefecture, which was hit hard by Typhoon Faxai in early September, some 130,000 households are spending the night without electricity.
Power is also down in parts of Tokyo as well as Ibaraki, Tochigi, Saitama, Yamanashi, and Gunma prefectures.
Strong winds associated with the typhoon may sever power lines. Trees and signboards may come into contact with those hanging cables.
Tokyo Electric Power Company is calling on people not to approach or touch such cables because they may be electrocuted.