As authorities continue to search for an "at-risk" man who's been missing for weeks, they've discovered stained clothing on the banks of the Mullica River, State Police said Wednesday.

State Police are continuing to search for John Kohlbecker, who was last seen on Feb. 11. Authorities said previously video surveillance saw him at a ShopRite in Bridgeton. They said Wednesday he was last seen when he was stopped for a traffic violation on the evening of Feb. 11 in in Buena Borough.

Numerous items of clothing were sent to the State Police laboratory for analysis, police said.

Authorities have also previously said they recovered the man's 1995 white Toyota Camry at the Green Bank State Forest Station in Wharton State Forest, in Washington Township.

The investigation is ongoing, police said.

Kohlbecker is described as being 5 feet and 11 inches, 135 lbs, with blond hair and blue eyes. Police have described him as an "at risk" individual.

Police are asking anyone with information that might help them locate the man to call  Detective Sgt. Glenn Garrels of the New Jersey State Police Major Crime Unit at 609-561-1800, ext. 3355.

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