CORRECTION: An earlier version of this story incorrectly claimed this incident was fatal and has been updated with the correct information.

CONEWAGO TOWNSHIP, Pa. (WHTM) — All eastbound lanes of I-76 have reopened after a corrections bus accident on mile marker 258 of I-76, between 247-Harrisburg East and 266-Lebanon-Lancaster exits around 8:37 a.m. on Friday.

According to the crash report, the bus was traveling in the left lane when the left steering tire suddenly deflated, causing the driver to lose control and the vehicle striking the center concrete barrier.

The bus was loaded with 38 inmates and staff. All inmates were accounted for after the crash and transported to Penn State Hershey Medical Center to be treated for non-life-threatening injuries.

What initially was believed as nine ambulances in route to the hospital, quickly grew to a potential of 40, said Dr. Sharon Griswold, an Emergency Room doctor at the medical center.

Carl Defebo of the Pa. Turnpike Commission confirmed Friday afternoon that the accident only involved the corrections bus, and the Pennsylvania State Police is investigating the cause of the crash. The accident occurred in the eastbound lanes near the Lawn Service Plaza in eastern Dauphin County.

Police say the National Transportation Safety Board (NTSB) may join the investigation due to the type of vehicle involved.