SOUTHWEST PHILADELPHIA (WPVI) --Police and firefighters were on the scene of a crash involving a tractor trailer in Southwest Philadelphia.
It happened after 6:30 a.m. Friday in the 5200 block of Grays Avenue.
Police tell Action News the trailer portion of the big rig overturned and a box truck collided with it.
There were no immediate reports of injuries.
Motorists were being urged to avoid the area.