Carrie Fisher Book Signing For "The Princess Diarist"Legendary actress Carrie Fisher has reportedly suffered from a massive heart attack while on a plane.

According to TMZ, the heart attack occurred about 15 minutes before the plane landed, and she was then transported to the nearest hospital.

Fisher is best known for her role as Princess Leia in the "Star Wars" movies, making her most recent appearance in "Star Wars: The Force Awakens."

She's also set to appear in "Star Wars: Episode VIII."