Illinois State Police say a body found in a truck on I-57 in Williamson County yesterday is not believed to be suspicious.

State troopers say the Florida resident had been visiting family in Illinois and was on his way back to Florida when it is believed he had a medical emergency and pulled his truck over before passing away.

The man was pronounced dead at 8:01 a.m. yesterday near Mile Marker 44 by the North Refuge Road overpass.