Six people, including a 17-year-old boy, died at a Colorado dairy farm due to suspected hydrogen sulfide (H2S) poisoning. H2S, a toxic gas produced by manure decomposition, is a known hazard on dairy farms. A safety expert stated this is the largest single incident of H2S deaths he's seen. The victims, many related, were likely working in a confined space near manure processing equipment. The incident highlights the dangers of working with manure and the potential for rapid H2S poisoning.

Prepared by Olivia Bennett and reviewed by editorial team.