PHILADELPHIA (WPVI) -- Officials are investigating what caused three tractor trailers to catch fire in the Bustleton section of Philadelphia.
The Philadelphia Fire Department responded to reports of a fire at a trailer repair shop on the 9300 block of Blue Grass Road.
[Ads /]
When they arrived, they found at least three trailers on fire.
It took about 20 minutes to put the fire out.
[Ads /]
The Fire Marshall was called to the scene.
There is still no word on what caused the flames.