Four people were killed and another 30 injured in a tour bus crash near Bryce Canyon on Friday afternoon, according to Utah authorities.

Photos from the scene of the crash show the large tour bus reduced to a mangled wreck as emergency workers treat injured people on the highway.

At least four people have been confirmed dead and multiple others are critically injured, according to the Utah Highway Patrol.

Local TV station KUTV is reporting the bus hit a guard rail and rolled over.

The accident occurred three miles west of the park on State Route 12 — one of Utah’s most popular scenic byways, according to the Salt Lake Tribune.

Air ambulances and rescue crews have also been dispatched and the highway has been closed for an investigation. State troopers are also en route from Salt Lake City.

People have been told to avoid the area to allow responders to work at the scene.