One person was killed when a truck hit a propane tank at the Franz Bread facility in Clackamas.
Clackamas County Fire responded Monday afternoon to the facility near Carpenter Road and Capps road south of Highway 212 at 122nd Avenue.
The fire destroyed three trucks and damaged part of the Franz building.
One person was treated for smoke inhalation.
Investigators say the driver of the truck who was killed may have been suffering a mental health crisis and deliberately drove into the propane tank.