Authorities on Sunday were investigating the deaths of four people at a three-day country musical festival in Michigan, including three men found dead in a travel trailer of suspected carbon monoxide poisoning.
Lenawee County Sheriff's officials said they received a 911 call regarding "unresponsive persons" at a campground near the Faster Horses Festival in Brooklyn. First responders arrived to find five unconscious men in their early 20s inside a travel trailer. Three of the males were pronounced dead at the scene, and two were transported by ambulance to a local hospital in critical condition and were being treated for acute carbon monoxide poisoning, the sheriff's office said in a statement.
Investigators said the caller was a friend who became concerned when he had not heard from the men.
