Michigan Attorney General Dana Nessel has charged four people in connection with the death of a 5-year-old boy who was killed in a hyperbaric chamber explosion in Troy, Michigan.The four were arrested Monday morning and arraigned Tuesday afternoon.

Police in Michigan have arrested four people after a 5-year-old boy receiving treatment at The Oxford Center died when the hyperbaric chamber he was in exploded.

Four Michigan medical center workers have been charged in the death of a 5-year-old who was burned alive inside a pressurized oxygen tank that exploded.