you can hear the screams from shocked residents stunned by the rushing water. >> whoa! >> what's happening right now. >> heavy rain falling in the mountains above the canyontown earlier in the day caused the river to rise rapidly, catching onlookers off guard. >> whoa. >> watch this video of rescue crews racing to save a family from a car moments away from being swept away. >> they're getting everybody out. >> reporter: children being pulled from the windows. the flood so strong, trees uprooted by the current pileup. >> that's pretty powerful. >> reporter: a search is still under way for several people. after two vehicles carrying a total of 16 parked to watch the flood were swept away by the intense rush of water. at least eight have been found dead, all of the victims mothers and small children. the youngest just 4 years old.