Model-actress Dayle Haddon, 76, dies in suspected carbon monoxide leak at Pennsylvania home

PENNSYLVANIA, PHILADELPHIA: Dayle Haddon, a renowned model, actress, and humanitarian, died at 76 due to suspected carbon monoxide poisoning.

The tragic incident occurred at the Pennsylvania home of her son-in-law, Hallmark star Marc Blucas, in Solebury Township.

Marc Blucas' dad was found unconscious

Police responded to a 911 call early on December 27 and discovered Dayle Haddon deceased in a second-floor bedroom.

Marc's father Walter Blucas, 76, was found unconscious on the first floor and is currently receiving treatment at Robert Wood Johnson University Hospital in New Brunswick, New Jersey.

Authorities have attributed the incident to a faulty flue and exhaust pipe on the home’s gas heating system.

Two medics also required hospitalization for carbon monoxide exposure, while a police officer was treated at the scene, according to People.

Dayle Haddon's legacy in fashion and film

Born in Canada, Dayle Haddon enjoyed a storied career in fashion, gracing the covers of Vogue, Elle, and Cosmopolitan.

She became the face of major cosmetic brands such as Revlon, Max Factor, Estee Lauder, and L’Oreal.

Dayle also appeared on the cover of the Sports Illustrated Swimsuit Issue in 1973, solidifying her status as a supermodel.

In film, she starred in Disney’s 'The World’s Greatest Athlete' and 'North Dallas Forty' alongside Nick Nolte.

Beyond her modeling and acting, Dayle was an accomplished author, penning books like 'Ageless Beauty' and 'The 5 Principles of Ageless Living'.

She served as a UNICEF ambassador, advocating for humanitarian causes worldwide.

Dayle Haddon's daughter Ryan Haddon's heartfelt tribute

Dayle Haddon’s daughter, Ryan Haddon, shared an emotional Instagram tribute, honoring her mother’s vibrant life and legacy.

“The bright light that is Dayle has dimmed in this Earthly realm. Shining somewhere as radiantly as ever where it’s most needed, I have no doubt,” Ryan wrote.

“She was a woman in her power, yet soft and attentive to all... She held so many up, saw their greatness sometimes hidden to them, and always built bridges to help them ascend,” she continued.

Calling Dayle a "high-hearted spiritual being" that put a value on her "soul’s evolution", Ryan shared that she knows that her mother's "journey here in this dimension must have been complete."

“I honor her. I bow to her. A pure heart. A rich inner life. Touching so many lives. A life well lived. Rest in Light, Mom,” Ryan concluded her tribute.

Ongoing investigation into Dayle Haddon's death

Authorities are conducting a toxicology report to confirm Dayle Haddon's cause of death.

Meanwhile, other family members at the property were unharmed.