Typhoon Wipha brought strong winds and heavy rains to Tokyo early Wednesday, killing at least 16 people on Izu-Oshima Island and disrupting metropolitan area transportation systems during the morning rush hour.
On Izu-Oshima, which is in the Pacific about 120 km south of Tokyo, 16 bodies were found, while about 42 people remain missing, according to police sources, who added the number of collapsed houses may run into the dozens.
In Machida, Tokyo, a woman believed to be in her 40s died after being swept away by a swollen river, police said.
According to data provided by the National Police Agency, 14 people were injured, including in Toyama, Tochigi, Chiba, Fukushima and Shizuoka prefectures.
In the town of Ninomiya, Kanagawa Prefecture, two 12-year-old boys were carried away by high waves while playing near the coast and remain missing.
Prime Minister Shinzo Abe instructed government agencies to collect information on the damage, ensure speedy rescue operations and begin restoring infrastructure.
The Metropolitan Police Department is sending some 60 personnel, including members of a special disaster rescue team, to Izu-Oshima, where many are feared buried by mudslides. It is the first major disaster-relief mission for the team, which was set up last year. The Tokyo Fire Department also mobilized a rescue team.
At the request of Tokyo Gov. Naoki Inose, the Defense Ministry dispatched Ground Self-Defense Force troops to the island.
Hit by record rainfall, many houses in the Motomachi and Kandachi districts on the islands were washed away by floods and buried in mud after a mudslide blocked a river, Oshima officials said, adding that the local government is unable to reach at least 50 residents.