Nearly one-million people have been evacuated from the coastal regions of China as Typhoon Morakot blew in, BBC reported.
Winds of up 119km/h (74mph) destroyed houses and flooded farmland, a small boy died when a building collapsed, before it weakened to a tropical storm.
In Taiwan, where the typhoon hit on Sunday, 12 people are confirmed dead.
Meanwhile, in Japan nine people are reported dead in floods and landslides after Typhoon Etau brought heavy rain to the west of the country.
Eight people died in Hyogo prefecture, including one man whose car was swept away by a swollen river, and another died in neighbouring Okayama prefecture.
Another 10 people are missing.