At least 15 people have died after flash floods devastated parts of China over the weekend.
The floods have destroyed homes, broken roads and left dozens of people still missing.
Aerial footage from Yuzhong County in China's northwestern Gansu province shows the extent of the devastation.
Workers have been called in to try and repair towns where the infrastructure has been ruined.
Some of the men were seen slipping in the mud that as they walk through piles of huge stones moved by the huge flow of water.
