A Sayreville man who has autism and was missing since Sunday was found safe on Saturday.

According to police, 29-year-old Jonathan Misak was last seen leaving his home in Sayreville on foot around 3:30 p.m. Sunday.

Four days later, someone matching his description was spotted in Old Bridge near Schmidt's Farm and that's where search teams and police focused their efforts.

"The police conducted a search with helicopters that night, [but] did not find him," said Misak family spokesperson Sue Lebrato. "Then yesterday around 2:30 [p.m.], the police conducted another search in that area with ATVs."

A team of volunteers combed through the area again Saturday morning where he was last seen. Then just before noon, Misak was spotted walking along Englishtown Road by a good Samaritan who had recognized his face from an electronic billboard just a mile away from where the search for him was taking place.

Misak was hungry, wet and scratched and it was unclear why or how he went missing. Lebrato said he was taken to a nearby hospital for observation.

"Considering his intellectual limitations, I think those things will take a little while to get all the facts together, but most importantly, his current health is the priority," Lebrato said.

The Misak family hopes to find the family who helped bring him home when they spotted him earlier in the day and call police so they can thank them.