A huge fear of mine when driving under any overpass, especially when I see people on it, is that they will throw a rock or some object and cause a horrible accident.

Police are trying to figure out if a rock thrown from an overpass is the cause of a huge crack in a Belton school bus windshield:

(Photo courtesy of Belton ISD

Luckily, the 60 students aboard the bus were not injured, and the bus was able to drop the kids off at their destination.

Texas Department of Transportation authorities say they’re also looking into re-engineering the bridge to prevent future incidents.