A number of agencies are assisting Cal-Fire on the Platina Fire burning 20 miles southwest of Redding. It started Sunday afternoon near Platina Road and Big Foot Road. At last report it had burned 340 acres and it’s now 45% contained. Most of Monday’s spread was on the north and west sides of the burn area and decreased fire activity overnight helped crews increase and strengthen containment lines. No structures have been reported damaged. Crews from Redding, Millville and Happy Valley are assisting, as well as inmate crews and the Forest Service. Three firefighters have suffered minor injuries.