The modeling and fashion world was rocked this week after the unexpected and tragic death of one of its legends hit the headlines.

According to Breitbart, it was announced over the weekend that Dayle Haddon, 76, had died of suspected carbon monoxide poisoning at a home in Pennsylvania owned by her daughter and son-in-law. 

Haddon's body was reportedly found in a "detached in-law suite," according to reports.

Authorities suspect that a heating unit malfunctioned, causing the excessive deadly gas to accumulate in the living quarters.

What's going on?

The supermodel was reportedly found deceased at the scene, according to a New York Post report.

The Post noted:

First responders were called to the property just after 6:30 a.m. Friday after receiving reports of a 76-year-old man lying unconscious on the first floor of the suite, the Solebury Township Police Department said.

The unidentified man was removed from the building and brought to a nearby hospital before rescuers learned that the woman, later identified as Haddon, was still inside.

Haddon was best known for her modeling work for some of the largest and most popular cosmetic and magazine companies.

Her daughter, journalist Ryan Haddon, wrote a touching tribute to her mother after the news broke of her tragic death.

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

She added, "She was a woman in her power, yet soft and attentive to all. Deeply creative and curious, gifted with beauty inside and out. Always kind and thoughtful."

Horrific circumstances

Another person was taken to the hospital first who was also staying in the house. He's still in critical condition.

It was reported that it wasn't known that Haddon was in the house, causing first responders to go back and retrieve her, only to find her deceased body upon arrival. First responders were also injured at the scene.

The Post noted:

The New Hope Eagle Volunteer Fire Company detected a “high level of carbon monoxide” on the property.

Two medics were hospitalized due to exposure to the poisonous gas and a police officer was treated at the scene for injuries with all three in stable condition, the police department said.

Many paid tribute to the late supermodel, noting her influence and legacy will remain a force in the business.