A major incident at the Gainsborough Care Home in Swanage, Dorset, has led to the deaths of three residents and the hospitalization of four others due to suspected carbon monoxide poisoning. Emergency services, including a hazardous area response team and multiple ambulances, responded swiftly, evacuating residents to a nearby church. Dorset Police are treating the deaths as unexplained, with carbon monoxide as a primary line of inquiry, although it has not been confirmed. The care home, operated by Agincare and housing 48 residents, many with dementia, is collaborating with authorities to ensure safety. Gas company SGN is conducting safety checks, and no risk to the wider public has been reported. The local community has shown support by providing blankets and necessities to the evacuated residents.