Oklahoma Highway Patrol troopers closed a southbound lane of I-35 after an overnight accident involving two semis. 

A tractor-trailer hit another tractor-trailer causing it to jackknife. One person was taken to the hospital with non-life-threatening injuries. 

Troopers moved a large amount of debris to a single lane and reopened the other southbound lane of I-35, four miles north of Purcell. 

Authorities say it could take several hours to clean everything up.