CNN
Updated 10:16 AM ET, Sun July 18, 202
(CNN) Three men were found dead inside a travel trailer Saturday at a country music festival in southern Michigan in what police believe is a case of carbon monoxide exposure, officials said.
Two other men inside the trailer were taken to a hospital after first responders found them unresponsive and performed CPR at the scene, the Lenawee County Sheriff’s Office said in a news release.
The pair were in critical condition and being treated for acute carbon monoxide poisoning, police said.