LANCASTER, Ohio (WCMH) — Ten students and two bus drivers were injured on Friday afternoon after two school buses crashed in Fairfield County.

Authorities responded to the intersection of State Route 37 and Rainbow Drive in Lancaster after two buses from Thomas Ewing Junior High School collided, according to the Ohio State Highway Patrol. Each vehicle was carrying 25 to 28 students and were traveling west when one bus stopped at a red light and the second failed to stop, striking the first bus.

One student was transported to Nationwide Children’s Hospital with head trauma and is in stable condition, the OSHP said. The nine other students and both bus drivers were transported to local hospitals for minor to moderate injuries.

Shortly after, the district advised parents on Facebook to expect delays as students would be transported home from the scene. A witness photo shared with NBC4 showed a line of cars and buses waiting near an intersection as emergency crews responded to the crash.

The OSHP said the crash remains investigation as the exact cause of the accident is unknown.