Beijing, July 1 (IANS) Over 2,600 residents of a low-lying township in south China have been left stranded by floods since Thursday, authorities said Friday.

A flash flood triggered by days of heavy rainfall hit Beigeng township at 4 p.m. Thursday, with water levels rising at a rate of 15 cm per hour, Xinhua quoted an official as saying.

All roads leading to the township have been cut off and rescuers are using boats to try to get to the stranded people, he said.

Twenty-one houses collapsed after the floodwaters hit the township.

No casualties have been reported.

In June last year, the township was flooded for five days.