SIOUX FALLS, S.D. (AP) — Authorities in southeast South Dakota are renewing their efforts to find anyone with information related to the death of a 16-year-old boy whose body was found on Interstate 90 last week.

The circumstances surrounding the death of Jay Gary Lavender are still under investigation, but the Minnehaha County Sheriff's Office says it appears the boy was struck by a semitrailer that left the scene. Lavender's body was found Thursday night on I-90 just east of the I-29 interchange.

Captain Paul Niedringhaus says authorities are looking for information from anyone who traveled in the area of I-90 mile marker 397 under the Kiwanis Avenue overpass between 9:45 p.m. and 10 p.m. Thursday.

He says a white semi-trailer was seen parked near the incident.

Anyone with information is asked to call 605-367-4300.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

More From KXRB