13 injured after wreck involving tour bus blocks I-85 southbound

Drivers experienced significant delays Thursday morning after a wreck involving a tour bus shut down I-85 southbound at Sugar Creek Road, Medic confirmed. 

One person has been transported to Novant-Main with serious injuries and 12 additional people have been taken to area hospitals for non-life threatening injuries via Medic's mass casualty bus. 

So far, no word on what caused the multi-vehicle crash. 

Charlotte Fire was asking drivers to please use caution around emergency vehicles.