A violent crash happened Saturday morning on the outer loop of the beltway in College Park.
A tractor trailer collided with a pickup truck that had two people inside. After the collision, the tractor trailer turned over, struck a concrete bridge support and started leaking fuel.
Three lanes were shut down for two hours while the fuel spill was cleaned up.
The two people in the tractor trailer and the two people in the truck were all transported to the hospital with non-life threatening injuries.
Investigators are still trying to figure out exactly what happened.