Exclusive footage from China Media Group shows rescue crews racing against time after a flash flood triggered by sudden heavy rainfall struck a scenic area in Weiyuan County, Dingxi City, northwest China's Gansu Province, on Sunday, leaving 10 people dead and 23 injured as of 6 p.m.

A total of 305 rescue personnel, 68 vehicles and four search dogs have been deployed. Rescue teams have completed four rounds of searches and evacuated 247 people after tourists were trapped by the sudden flooding.

Authorities have activated a Level IV flood prevention emergency response for the province. China has a four-tier emergency response system, with Level I being the most severe.