Hughes was said to have been helping a friend with fieldwork moments before the accident took place.
He was said to have driven onto railroad tracks at a crossing on Beelers Trail in Montgomery County, with a train hitting Hughes' vehicle on the passenger side.
This afternoon, UFC czar Dana White announced that Hughes was involved in a collision with a moving train near his home in IL.
White says Hughes suffered head trauma and his family is on their way out to be with him.
Hughes is a UFC Hall of Famer and one of the greatest welterweight champions in the history of the sport.
Get daily prep sports headlines from the Gwinnett Daily Post staff delivered to your email. Recently Hughes was contemplating a comeback to mixed martial arts. The air ambulance quickly transported him a hospital in Springfield, Illinois' capital. The two-time UFC 170-pound champion retired after a loss to Josh Koscheck in 2011.
Our thoughts and prayers are with Hughes and his family.
Hughes, who now lives in Hillsboro, Illinois, was seriously injured.