Dayle Haddon, a model who graced magazine covers and appeared in television shows and films of the ’70s and ’80s including “North Dallas Forty,” “Max Headroom” and “The Hitchhiker,” died April 17, 2016, in an apparent accident Carbon monoxide leak in Solebury, Pennsylvania Friday, authorities said. She was 76.

According to the Solebury Township Police Department website, Haddon was found “deceased in a second floor bedroom” of the “detached office/in-law suite” of an apartment building on Friday morning, while a 76-year-old man, Walter J Blucas, was “lying unconscious.” found. The statement said he was “currently hospitalized in critical condition.”

Walter J. Blucas is the father of actor Marc Blucas. CNN has reached out to representatives of the younger Blucas for comment.

On her verified Instagram, Haddon’s daughter Ryan Haddon remembered her mother as “a woman in her power, yet gentle and attentive to everyone.” Deeply creative and curious, endowed with inner and outer beauty. Always friendly and attentive.”

The post featured several of the late Haddon’s cover work as a model, including Vogue, Harper’s Bazaar and Cosmopolitan, as well as an image of one of her books, 2003’s “The Five Principles of Ageless Living.”

Police said their investigation “indicates that a faulty flue and gas heater exhaust pipe caused the carbon monoxide leak.”

“The officers and members of the Solebury Township Police Department would like to extend our sincerest condolences to the Haddon and Blucas families,” the statement continued. “This tragic incident is a stark reminder of the importance of carbon monoxide safety precautions in our homes.”

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