Update: As reported at: https://inciweb.nwcg.gov/incident/6191/

The Delta Fire is burning near Interstate-5 near the Vollmers Exit north of Lakehead. Interstate 5 is closed from 10 miles north of Redding at Fawndale Road to 3.6 miles south of Mount Shasta at Mott Road. Motorists are advised to use an alternate route. 

The Shasta County Sheriff's Office is conducting evacuations on both sides of I-5 north of Lakehead to the Shasta/Siskiyou county line.

Original post

Interstate 5 is closed from 10 miles north of Redding to 3.6 miles south of Mount Shasta (Mott Rd.) due to a wildfire, according to Caltrans, which advises motorists to use an alternate route.