Fire crews are responding to multiple vegetation fires near the Twitchell Reservoir along Highway 166 near Alamo Creek Road.
The fires were first reported shortly after 10:00 p.m.; Cal Fire reported that one of the fires north of Highway 166 is approximately 10 acres.
According to the CHP Traffic Incident Information Page, Caltrans has closed Highway 166.
This is a developing story and will be updated as information becomes available.