WILLIAMSON COUNTY, IL (WSIL) -- UPDATE: Highway 148 is back open.
ORIGINAL: A wreck has closed a portion of highway 148 south of Herrin.
Authorities are on scene of a crash involving two vehicles near the Crab Orchard Refuge observation deck.
Williamson County Fire Protection District also has a crew on scene, along with other emergency agencies.
A wreck has closed a portion of highway 148 south of Herrin.
Multiple reports from viewers in the area said traffic is backed up in the area.
Motorists are urged to use alternative routes.
