At least four people in Zhejiang province were reported missing.
Damages were severe and at least 360,000 homes in Zhejiang and 130,000 in Fujian province were without power, the Xinhua News Agency reported.
About 100,000 visitors to Zhejiang were evacuated as of Monday and some tourist attractions were closed, officials said.
About 176,000 people were evacuated in Fujian province.
Fitow, with winds up to 94 mph, made landfall in Fujian early in the day, the National Meteorological Center said.
Many bullet-train runs and flights were canceled.
Zhejiang province had more than 5 inches of rain from Saturday to Monday.
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