A rep for the star told Deadline: "At this time Anne is in extreme critical condition.
she has a significant pulmonary injury requiring mechanical ventilation and burns that require surgical intervention."
The rep went on to tell the outlet, "She is in a coma and has not regained consciousness since shortly after the accident."
On Friday, August 5, Heche was driving at a high speed when she "struck a house, burst into flames and came to rest 30 feet inside the two-story home
A woman, who was in the home at the time of the crash, had no injuries per LAFD. Authorities are still investigating the accident.