Fire crews from Ventura and Los Angeles counties are battling a rapidly growing vegetation fire in Holser Canyon, near Lake Piru, in 100-degree heat. The blaze, called the Canyon Fire, is estimated to be at 600 acres.

Multiple locations are under evacuation orders near Piru in Ventura County due to a fast-moving brush fire that has scorched more than 1,000 acres. KTLA's Gil Leyvas, Rachel Menitoff and Kaj Goldberg report on Aug.

First discovered: 1:31 p.m. Aug. 7 A new wildfire was reported today at 1:31 p.m. in Ventura County, California. Canyon Fire has been burning on private land. At this time, the containment status is unknown and the cause of the fire remains undetermined.