Actress Carrie Fisher, best known for her role as Princess Leia in the “Star Wars” movies, suffered a massive heart attack on a flight from London to Los Angeles.

Passengers administered CPR on the flight. Fisher, 60, was in full cardiac arrest and was rushed to a local hospital in critical condition after the flight landed in LAX.

Law enforcement told NBC News that the actress’s condition was “not good.”

BREAKING: Carrie Fisher Suffers Heart Attack