Police are still working to determine what caused a fiery crash that injured three teenagers in Landover, Md., Wednesday morning.
A tractor trailer was pulling into a warehouse in the 8400 block of Ardwick Ardmore Road when it collided with a sedan just before midnight.
The teens inside the sedan escaped just before the vehicle caught fire.
Prince George's County Fire Spokesman Mark Brady says the tractor trailer was carrying material used to manufacture mattresses.
The teens were transported to area trauma centers. The driver of the tractor trailer was not seriously injured.