Squatters are believed to be responsible for a fire at the old Downtown Redding site of Moore’s Flour Mill. The business has moved to Avtech Parkway off Airport Road, but some resources remain parked at the old location at Center and Shasta Streets. At 9 o’clock Wednesday night Redding Fire Department was sent to parking area to the rear of the mill, where a large transport trailer was on fire. It was contained by use of four engines and 13 firefighters, and damage was limited to the trailer, which contained furniture and personal items. Value of the damage is estimated at $20,000. Fire investigators determined that the fire was caused by someone who had broken in and was living inside the trailer.