BROOKLYN, Mich. (FOX 2) - Four people attending Faster Horses Festival at Michigan International Speedway have died.
Authorities believe five men in their early 20s found unresponsive in a travel trailer were exposed to carbon monoxide. The men were camping off festival grounds at a campground at US-12 and Brooklyn Highway when they were found just before 1:30 p.m. Saturday.
Three of the men died while two are in critical condition and are being treated for acute carbon monoxide poisoning.
Michigan State Police are also investigating the unrelated death of a 30-year-old Croswell woman.
Melissa Donna Havens was found dead around 7:30 a.m. Saturday, police said.
An autopsy and toxicology test are being performed.
Police are looking to speak with a man who was with Havens within 24 hours of her death. He is described as black, in his 30’s, had short black hair, a short beard, and was wearing a gray hoodie.
Anyone with information is asked to call 734-819-8192.
There is no threat to the public, police said.
Faster Horses is a three-day country music festival that draws thousands of people to Brooklyn, Mich. each summer.