OVERBROOK, Kan. (AP) — Authorities are asking the public for help in finding witnesses to the hit-and-run death of a northeast Kansas pedestrian.

Twenty-year-old Timothy Kemble, of Carbondale, was found dead around 5 a.m. Sunday along U.S. 56 in Osage County.

The Kansas Highway Patrol said Thursday investigators hope to talk with anyone who was driving on the highway near Overbrook between 4:30 and 5:30 a.m. Sunday.

Investigators are also trying to locate the driver of a tractor-trailer that was in the area at that time. The Highway Patrol says the driver is not a suspect, but could have helpful information.