A woman rescued by firefighters from a burning home in Alpharetta moments before the roof collapsed early Saturday has died.

Just before 6 a.m., Alpharetta police and firefighters rushed to a large house fire in the 200 block of Clipper Bay Drive, Alpharetta public safety spokesman George Gordon said.

They broke windows and doors to enter the burning home and find the woman, who was on the phone with 911 operators before she lost consciousness, Gordon said.

Officials found her in medical distress in an upstairs room, he said. As the roof began to collapse, authorities pulled the woman from the residence, Gordon said.

The Fulton County Medical Examiner’s office told The Atlanta Journal-Constitution Monday morning that the woman, 52-year-old Yvonne Crisp, had died.

Though Alpharetta and Milton firefighters were able to contain the blaze, the residence was “heavily destroyed,” Gordon said.

An investigation is ongoing.