Photo taken on July 10, 2019 shows a part of flooded Xiangtan City in central China's Hunan Province. (Xinhua/Chen Zeguo)

As floods hit the reaches of several key rivers in China, the Ministry of Water Resources Thursday issued a yellow alert for floods in 10 provincial-level regions, including Jiangxi, Hunan and Guangxi.

Floods have hit the middle and lower reaches of the Yangtze River, the upper reaches of the Yellow River and the Xijiang River in the Pearl River basin, according to the Department of Flood and Drought Disaster Prevention of the ministry.

Following the recent heavy rainfall, two heavy floods occurred in the upper reaches of the Yellow River, and the current flow in the Lanzhou section of the main stream has exceeded the warning level.

The Xijiang River in the Pearl River basin saw the first flood this year.

Floods exceeding alarms occurred in rivers around Dongting Lake and Poyang Lake in the middle and lower reaches of the Yangtze River.

The section from Jiujiang to Poyang Lake in the middle reaches of the Yangtze River will exceed the alarm level Friday, which will be the first time for the water level in the main stream of the Yangtze River to exceed the alarm level in this year's flood season, according to the ministry.

The ministry's flood warning targets Qinghai, Gansu, Ningxia, Inner Mongolia, Guangxi, Guangdong, Jiangxi, Hunan, Anhui and Jiangsu.

The ministry upgraded the flood and drought disaster prevention level Wednesday and sent more working groups to affected areas.