Super Typhoon Meranti, already reduced to a tropical depression, has left at least 14 people dead and 14 missing in its wake, Chinese authorities have reported.

Meranti, the world’s strongest typhoon this year, arrived at Xiamen, in the eastern province of Fujian, early on Thursday, wreaking havoc as it passed through.

In Fujian, at least seven people were killed as a result of the typhoon, while another six died in the neighbouring province of Zhejiang and one more in Taiwan, where the typhoon left great devastation Wednesday before reaching China, according to China’s official news agency Xinhua.

Meranti wreaked devastation when it hit Taiwan on Wednesday. Photo: AFP

Fourteen people are still missing in China and more than 50 are injured in Taiwan, although the figures continue to vary.

Around 331,000 people were relocated in Fujian, where authorities estimate the direct economic losses to be $US249 million ($A332 million).

Workers are still trying to restore electricity in the city of Xiamen, where the typhoon caused a massive blackout, disrupting water supplies which have been restored almost entirely since Thursday night.

Some parts of Xiamen’s railway network were also damaged and 61 train routes will be modified between September 16 and 25.

The typhoon, which has reduced to a tropical depression since Thursday night, moved northward causing heavy rainfall in other areas of Fujian and in the neighbouring provinces of Zhejiang, Jiangxi, Jiangsu, Anhui and Shanghai city.

Zhejiang, with six dead, five missing and 70,000 relocated, was the next most affected area after Fujian.

The Dongguan bridge in Fujian was destroyed by the swollen Huyang stream. Photo: Getty

More than 600 workers are continuing rescue efforts in the flood-affected regions of Zhejiang.

Shanghai experienced its heaviest rains this year from Thursday night until Friday morning.

Meanwhile, Taiwan, having barely recovered from the aftermath of Meranti, is already bracing for the arrival of another typhoon, Malakas, which is expected to hit the region on Saturday evening.

Taiwan’s Central Weather Bureau issued land and air alerts with Malakas approaching Friday, warning that the typhoon – weaker than Meranti – will be accompanied by winds of up to 180 kilometres per hour.

Fujian province said the coastal fishing sector would be affected until September 19 due to the proximity of Malakas, while Shanghai’s Flood Disaster and Flood Control Measurements urged its departments and organisations to be prepared for the arrival of the typhoon.