A vehicle that was transporting radioactive waste has been struck by another vehicle. Fuel is leaking at the scene of the accident.

A vehicle that was transporting radioactive waste has been struck by another vehicle. Fuel is leaking at the scene of the accident. Identify the radioactive material that could be involved, and describe the chemical interaction that could be occurring as a result of the collision between the two vehicles. What immediate action should the EHS and FS responders take to protect human health and the environment?