ST. CHARLES COUNTY, Mo. – Drivers can expect about three miles of backup Monday morning.

Our Bommarito Automotive Group SkyFOX helicopter is flying over I-70 eastbound at Highway 79, where a tow truck is on the scene of a single-vehicle crash. The cause of the crash has not yet been revealed.

No injuries have been reported. Drivers are urged to take an alternate route.

FOX 2 will update this story with more information as it becomes available.