More than 400 Americans die from accidental carbon monoxide poisoning every year, which sends another 100,000 to the emergency room, according to the U.S. Centers for Disease Control and Prevention.

Model Dayle Haddon died in a suspected carbon monoxide leak at the Bucks County home of her son-in-law, Hallmark movie star Marc Blucas, officials said.

Actress and model Dayle Haddon has died and another person has been hospitalised due to a carbon monoxide leak at a home in Pennsylvania, authorities have said. Haddon modelled for brands including Estée Lauder and L'Oreal,