The model, author and actress Dayle Haddon died Friday after a suspected carbon monoxide leak at a Pennsylvania home. She was 76.

Actress and model Dayle Haddon died from suspected carbon monoxide poisoning inside a Pennsylvania home owned by her son-in-law, actor Marc Blucas, NBC10 confirmed.

A Massachusetts couple and their two daughters were identified by authorities Friday as the victims of suspected carbon monoxide poisoning after they were found dead at their lake house in New Hampshire on Christmas Day.

A 76-year-old woman found dead of suspected carbon monoxide poisoning at a historic Bucks County farmhouse property early Friday has been identified as Dayle Haddon, who had a successful career as a model in the 1970s and ‘80s and later became a UNICEF ambassador.

Wakefield, N.H., police were dispatched to a home in the 2900-block of Province Lake Road at around 4:20 p.m. Wednesday to conduct a welfare check. The state fire marshal’s office was brought in

Haddon appeared in several movies, including 'The World's Greatest Athlete,' 'North Dallas Forty,' 'Cyborg' and 'Bullets Over Broadway.'

Model and actress Dayle Haddon has died after what police say was a suspected carbon monoxide leak at the home of Hallmark actor Marc Blucas in Bucks County. Blucas is the husband of Haddon’s daughter,

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.