Shanghai city officials have closed more than 60 parks and the city zoo as residents wade through floodwaters after heavy rains hit the financial hub in the aftermath of Typhoon Fitow.
The official Xinhua News Agency said Shanghai had been hit with about six inches of rain, the highest single-day total since 1961.
Xinhua said that although the typhoon landed on Monday in the south-eastern province of Fujian, the neighbouring province of Zhejiang had been hit the hardest, with the death toll now at six. Schools have been closed and power and transport disrupted throughout the province.
In its capital city of Hangzhou, the water level for the scenic West Lake has risen 11 inches, flooding lakeside walkways.
In Wenzhou city, the storm destroyed more than 1,700 houses and 46,800 hectares of farmland.
The storm is believed to have has caused economic losses of more than ÂŁ2.1bn, officials in Fujian and Zhejiang provinces said.
Fitow is the 23rd typhoon to hit China this year.
The latest flooding came just weeks after Typhoon Usagi killed at least 25 people in southern Guangdong province.