HOUSTON --Emergency crews are cleaning up after a concrete mixer overturned on Weslayan at the Southwest Freeway underpass.
An Eyewitness News crew was on the way to another scene when they saw the truck fall over onto its side in the turn around lane of the underpass.
RAW VIDEO: Foti Kallergis helps pull driver to safety
Reporter Foti Kallergis rushed to the aid of the driver inside the truck, helping to pull him out of the crashed vehicle.
Investigators at the scene say speed may have played a role in the accident. Skid marks can be seen at the scene just behind the wrecked truck.
A Hazmat unit has been called to the scene after diesel fuel was found leaking from the truck's tank.
A TxDOT crew has also been called to check the stability of several pillars next to the overturned truck.
Officials said they expect right now to have the wreck cleaned up in about an hour.