A big rig on its side was jamming traffic on the southbound 710 Freeway this morning in Long Beach.

It’s not clear how the crash occurred, but it happened around 6 a.m., according to a CHP dispatch log, and it ended with the truck on its side on the Pacific Coast Highway off-ramp from the southbound 710.

Rescue crews responded and pulled the driver from the big rig’s cab. The CHP also called in a heavy-duty tow truck to try to right the vehicle.

Officers shut down the PCH off-ramp and on-ramp so workers could clean up the wreck. They estimated it would reopen sometime after 9:30 a.m.