Star Wars actress Carrie Fisher suffered a massive heart attack while traveling on an airplane Friday morning.

TMZ reported that the 60-year-old went into cardiac arrest while on a flight from London to LA and an EMT who was on the plane rushed to administer CPR on the actress.

According to the Los Angeles Times, the actress is currently listed in critical condition.

Fisher is best known for her iconic role as Princess Leia in the Star Wars films. She made headlines earlier this year with her bombshell claim that she slept with Harrison Ford when they co-starred on the famous movies together.

Fisher is the mother of Scream Queens actress Billie Lourd, 24 and daughter of legendary actress Debbie Reynolds.