One person suffers life threatening injuries in a crash involving two semis on Northbound I-55 north of Farmersville. The crash at mile marker 75.5 occurred just after 1pm (Thursday). The crash and investigation has led to northbound traffic being diverted off the interstate at the Farmersville (Milepost 72) exit. There’s no further information on the cause of the crash. State Police District 18 and 9 are teaming up to handle the accident scene.