(STMW) — A man found dead Thursday afternoon on the grounds of the annual Ribfest in west suburban Naperville apparently committed suicide, police said.

The man was found unresponsive about 2:48 p.m. in the carnival section of the festival, Naperville Police Sgt. Bill Davis said.

READ MORE: Proposed Federal Legislation Would Impose Regulations To Prevent Black-Market Brokering Of Donated Body Parts

He was dead on the scene, and the DuPage County Coroner’s office has been notified, Davis said.

A preliminary investigation indicated that the man jumped in front of a carnival ride, and no foul play or ride malfunctions were suspected as of Friday morning, Davis said.

READ MORE: Woodridge Residents Cope With Emotional Impact Of Damage From Sunday Night Tornado; Village Places Priority On Getting Power Back On

The man is an adult, but his exact age was not released, authorities said.

Thursday was the first day of the annual festival, which runs through Sunday at Knoch Park near Naperville Central High School, according to the festival’s website. The event features a barbecue competition, live music and a section of carnival rides.

MORE NEWS: Residents Repairing Homes After Tornado Run Into Sky-High Prices For Lumber, Other Construction Materials

(Source: Sun-Times Media Wire © Chicago Sun-Times 2015. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)