Carrie Fisher is in stable condition after suffering a heart attack on-board a plane on Friday.

Debbie Reynolds updated worried fans on the actress’ condition via Tweet:

Todd Fisher, Carrie’s brother, had previously shared the actor’s condition on Saturday: “There really is not much to say. She is in the intensive care unit, she is being well looked after. If everyone could just pray for her that would be good. The doctors are doing their thing and we don’t want to bug them. We are waiting by patiently.”

He also addressed an earlier comment attributed to him, in which he was alleged — at the time — to have said his sister was in “stable condition.”: “I don’t know where they got that word from. That is absolutely not even close to the truth. We don’t know. We hope for the best. We certainly do not know her condition, that’s why she is in ICU. I’m sure everyone wants to speculate but now is not the time for that.”

The actress went into cardiac arrest during a flight from London to LAX and was given CPR from the passengers on board.

Fisher suffered the heart attack 15 minutes before the plane landed. An EMT on board administered life-saving measures. She was rushed to a hospital nearby.

Officer Hernandez with Airport police told ET Canada in a statement: “Airport police officers responded to an incident at 12:15pm at terminal 7 regarding a female victim who went into cardiac arrest. When police arrived, LAFD was already performing CPR on the victim. The victim was transported to a local hospital for further treatment.”

YouTube star Anna Akana was on the plane with Fisher and tweeted out details about the incident:

TMZ is reporting that Fisher is at UCLA Medical Center on a ventilator.

Celebrities are currently sending their thoughts and prayers to the actress: