Authorities identify woman found in Chicago O'Hare Airport conveyor belt

The identity of a 57-year-old woman who was found dead at Chicago O'Hare International Airport on Thursday has been released.

Virginia Christine Vinton, of Waxhaw, North Carolina, was found "entangled in the conveyor belt system," fire officials said.

Vinton's cause of death was ruled "asphyxiation by hanging," with authorities concluding she died by suicide, the Cook County Medical Examiner's Office confirmed to ABC-owned station WLS on Friday.

According to a spokesperson for the Department of Labor, she was a member of the public and not a worker at the airport.

Emergency responders were called to Terminal 5 at about 7:45 a.m. following reports of a woman "pinned in machinery," the Chicago Fire Department said.

Medics pronounced Vinton dead at the scene.

Police said surveillance footage of the area showed her "entering an unoccupied restricted area at 2:27 a.m."

ABC News' Ayesha Ali contributed to this report.