Shocking video shows firefighters in San Bernardino County fleeing from a massive mudslide triggered by rain from Tropical Storm Hilary. The video, taken Sunday afternoon in the Forest Falls area, shows the moment a group of first responders run water and sludge barreling down a ravine. The firefighters were responding to a loud noise but quickly retreated after seeing the mudslide taking out trees and other elements in its way. No one was injured, according to KTLA , but the mudslide did block roadways in the area and briefly strand firefights at a nearby fire station. The mudslide is just one of many major weather-related incidents in Southern California which was hit hard by the heavy rain and high winds over the weekend.