PORTER, Ind. (AP/WOOD) — Authorities searching along northern Indiana’s Lake Michigan shoreline for a man who vanished during a kayaking trip say what’s believed to be the man’s kayak has been recovered.

Twenty-three-year-old Jacob Sandy of South Bend was last seen May 18. Police in Porter, Indiana, determined that a car with a Michigan license plate found May 21 at a parking lot near Porter Beach belonged to Sandy.

The Indiana Department of Natural Resources announced late Monday that someone found the kayak May 21 near the shore in New Buffalo, Michigan, about 18 miles from where Sandy was last seen. The person later contacted law enforcement after they saw an image of Sandy’s kayak.

The Oakland Press of Pontiac reports Sandy is originally from the Detroit suburb of Birmingham, Michigan, and moved to South Bend after graduating from Hope College in Holland, Michigan.

Anyone with information leading to Sandy is encouraged to contact Indiana Conservation Officers Central Dispatch Center at 812.837.9536.