A passenger who suffered several broken ribs in the fatal Irving, Texas, bus crash has filed a negligence lawsuit  against the company operating the vehicle. The lawsuit, filed Monday, names Cardinal Coach Lines Inc., of Mansfield.

The accident Thursday killed two passengers and injured more than 40. The charter bus was on its way to an Oklahoma casino when it hit a barrier and flipped on its side.

Sgt. Lonny Haschel, of the Texas Department of Public Safety, said the investigation into what caused the accident is ongoing.

The Texas bus accident lawyers at Schechter, Shaffer & Harris, L.L.P., Accident & Injury Lawyers help people who have been injured in incidents like the Cardinal Coach bus accident.