A Darlington County sheriff's deputy collided with a van on Ashby Road in Quinby, in Florence County, Thursday afternoon.
Officers on scene said the two people in the van weren't injured and are still on scene.
Witnesses added it appeared the officer's unmarked SUV pulled out in front of the van.
They said the deputy's airbag deployed , and he was trapped inside the SUV, according to witnesses.
The two people in the van said they helped free the deputy from his vehicle.
Quinby police are investigating.