Several people were injured when a food truck suddenly exploded in the Feltonville neighborhood in Philadelphia.
Authorities released a new surveillance video showing the moment the food truck parked on the street exploded into a fireball.
The explosion injured about a dozen people, two of them critically with burns all over their bodies.
The initial investigation indicates the propane tank may be to blame. Witnesses report the force of the blast blew some of the victims away from the truck.
We do know two of the victims are teenagers, one is 17 and the other is 13.
We have a large number of food trucks in Oklahoma City, and they are quite popular. The Oklahoma City - Oklahoma County Health Department has a mobile food service to ensure each truck is properly licensed and inspected.
The organization also has strict rules in place for how food trucks are set up. Some of the rules go over plumbing, sanitation and food preparation.