The accident occurred around 1:00 p.m. on Route 73 off southbound I-295 in Mount Laurel Township.
A tractor-trailer carrying perishable food overturned on the ramp.
Authorities say the cars may have collided in response to the tractor-trailing overturning.
An ambulance was dispatched to the scene.
Three people were treated for minor injuries.
Crews say there was no fuel leak.
