Star Wars actress Carrie Fisher has been taken to hospital after suffering a heart attack on a London to Los Angeles flight.
Celebrity news website TMZ said the actress was given CPR by passengers on board before the plane landed at LAX and she was taken to a nearby hospital.
US actress Anna Akana tweeted about seeing the 60-year-old, who starred as Princess Leia in the sci-fi classics, fall ill.
She said: “Don’t know how else to process this but Carrie Fisher stopped breathing on the flight home. Hope she’s gonna be OK.
“So many thanks to the United flight crew who jumped into action, and the awesome doctor and nurse passengers who helped.”
Fisher has been on tour promoting her memoirs, entitled The Princess Diarist.
Star Wars actor Peter Mayhew, who starred as the Wookie character Chewbacca alongside Fisher, tweeted to say: “Thoughts and prayers for our friend and everyone’s favourite princess right now.”
A spokeswoman for police at LAX airport said: “Los Angeles police responded at 12.15pm to Terminal 7 regarding a female victim who went into cardiac arrest.
“Upon arrival the LAFD (Los Angeles Fire Department) was already performing CPR on the victim and the victim was transported to a local hospital for further medical treatment.”