China has allocated an additional 848 million yuan to support local flood rescue efforts, the Ministry of Finance (MOF) said on Tuesday.

The fund, allocated by the MOF and the Ministry of Water Resources, will mainly be used to assist rescue work by local authorities in the flood-hit regions, including Hunan, Jiangxi, Hubei and Guangdong provinces.

Meanwhile, rescue personnel successfully sealed a 226m breach in a dyke at Dongting Lake, China's second-largest freshwater lake, on Monday, according to local authorities.

At 10.31pm, the final truckload of rocks was dumped into the breach.

The sealing will expedite drainage and post-disaster reconstruction.

The breach at Dongting Lake in the city of Yueyang in Hunan was caused by floodwaters from torrential rain, with more than 7,000 residents evacuated since the dyke burst on Friday afternoon. (Xinhua)