TRAFFIC ALERT: Southbound I-35 reduced to one lane in San Marcos

Traffic has been reduced to one lane as crews clear the road after an 18-wheeler rolled over on southbound Interstate 35 near Posey Road in San Marcos.

City officials said no one was injured in the wreck. Crews estimate it will take multiple hours to clear the debris.

Commuters are being asked to avoid the area, if possible, and seek alternate routes.

This story is developing; check back for updates.