Typhoon Ma-on left at least six people dead and three others missing as of Sunday after hammering Tokyo and its vicinity with torrential rain and fierce winds.

Ma-on, one of the most powerful storms to have struck the Kanto region, was downgraded to an extratropical depression at around 9 a.m. It was located in the Pacific east of Japan and was moving east-northeast at 75 kph, according to the Meteorological Agency.

It was the ninth typhoon to make landfall on the Japanese archipelago this year, a record high. The Pacific coast of northeastern to central Japan saw turbulent seas for much of Sunday morning.

In the city of Shizuoka, police said they found the body of a 37-year-old woman washed ashore at Masaki Beach at around 5:30 a.m.

Police officials said the woman had been carried off by high waves at a beach some 6 km west of where the body was found, and added they were investigating the circumstances surrounding her disappearance, including the possibility of suicide.

In Onjuku, Chiba Prefecture, 74-year-old Inao Ezawa, who went missing Saturday morning while delivering newspapers on a motorbike, was found dead in a nearby river Sunday.