At least a dozen RVs went up in flames early Thursday morning at a Snohomish storage facility.
The storage facility, in the 2020 block of Bickford Avenue, caught fire around 3:30 a.m. after a caretaker called 911, fire officials say.
The two-alarm fire burned through the RVs quickly, firefighters say. Neighbors report hearing explosions and seeing flames shoot into the sky.
No injuries have been reported, as of Thursday morning. The fire has been extinguished.
Fire investigators are reviewing security footage and working to determine what caused the fire. They suspect the explosions were from propane tanks attached to the RVs.