Carrie Fisher's friend and former Star Wars co-star Harrison Ford has paid tribute to the "one of a kind" actress who passed away today.
In a statement to E! News, Ford said: "Carrie was one-of-a-kind...brilliant, original. Funny and emotionally fearless. She lived her life, bravely...We will all miss her."
Fellow Star Wars star Mark Hamill has posted a poignant tribute to his on-screen twin.
Hamill tweeted "No words #devastated" as news of the 60-year-old's death swept the entertainment world.
The Star Wars actress passed away on Tuesday morning (US time) in Los Angeles, her rep confirmed.
Soon after celebrities reacted to the news of the loss of the movie icon, the Daily Mail reported.
Hamill also shared a note on Instagram with three photos. This one said:
"Dear Santa: All I want for X-mas is The Force to be strong with Carrie."
George Lucas, who cast Fisher as Princess Leia in Star Wars: A New Hope, also shared a statement about the woman with whom he'd "been friends most of our adult lives".
She was extremely smart; a talented actress, writer and comedienne with a very colourful personality that everyone loved," he said in a statement. "In Star Wars she was our great and powerful princess-feisty, wise and full of hope in a role that was more difficult than most people might think. My heart and prayers are with Billie, Debbie and all Carrie's family, friends and fans. She will be missed by all."
JJ Abrams, who directed Fisher in The Force Awakens, added his own tribute to Twitter, writing that she was "just as brilliant and beautiful, tough and wonderful, incisive and funny as you could imagine".
Billy Dee Williams, who played Lando Calrissian in the Star Wars film franchise, tweeted: "She was a dear friend ... The force is dark today."
Anthony Daniels, who played C-3PO wrote: "I thought I had got what I wanted under the tree. I didn't. In spite of so many thoughts and prayers from so many. I am very, very sad."
Peter Mayhew, who is the sci-fi film franchise's Chewbacca, said: "There are no words for this loss. Carrie was the brightest light in every room she entered. I will miss her dearly."
Fisher's mother, film veteran Debbie Reynolds, wrote on Facebook: "Thank you to everyone who has embraced the gifts and talents of my beloved and amazing daughter.
"I am grateful for your thoughts and prayers that are now guiding her to her next stop. Love Carries Mother."
Reynolds, 84, was the darling of Hollywood in the 1950s with hits such as Singin' In The Rain and Tammy And The Bachelor.
Gwendoline Christie, who was in Force Awakens, said: "We've lost our Princess."
Lupita Nyong'o, who was also in Force Awakens, wrote, "Sweet Carrie" while sharing a photo of the two of them with Fisher's dog Gary.
"Carrie Fisher was one-of-a-kind, a true character who shared her talent and her truth with us all with her trademark wit and irreverence," wrote Bob Iger, chairman and chief executive officer, The Walt Disney Company.
Disney is now co-producer of the Star Wars films.
"Millions fell in love with her as the indomitable Princess Leia; she will always have a special place in the hearts of Star Wars fans as well as all of us who were lucky enough to know her personally. She will be sorely missed, and we join millions of fans and friends around the world who mourn her loss today."
William Shatner of Star Trek fame tweeted: "I'm deeply saddened to learn of the death of Carrie Fisher. I will miss our banterings. A wonderful talent & light has been extinguished."
Actress Anna Kendrick had a profanity laced reaction within minutes of the news.
"No. No. F*** this s***. Carrie Fisher is a f***ing legend and this is bulls***."
Carrie's dog Gary, who had his own Twitter account, wrote: "Saddest tweets to tweet. Mommy is gone. I love you @carrieffisher." It is not known who wrote the post for him.
Jamie Lee Curtis shared a photo of Carrie's daughter Billie and said: "My mother's heart goes out to this exquisitely talented young woman. Her mother's spirit and talent lives on in her and I'm sure all of Carrie's fans and friends will give her space and privacy."
Gwyneth Paltrow shared a beautiful photo of Carrie from the 1980s and a note that read: "Oh goodness. Heavy heart today."
Comedian Steve Martin's words were: "When I was a young man, Carrie Fisher was the most beautiful creature I had ever seen. She turned out to be witty and bright as well."
Blindspot Jaime Alexander tweeted: "I can't take much more of 2016. #RIP #CarrieFisher."
Mia Farrow wrote: "Oh no!! Carrie wasn't done yet!" She then added: "Carrie was brilliant, funny and talented. Sending huge love be to her mom, her daughter, Billie and her many friends."
Sarah Paulson had a touching note: "Sweet, Brilliant, Irreverent, Huge hearted Carrie, You gave me advice I live by to this day, & always will. On the wings of angels fly..."
Whoopi Goldberg said: "Carrie Fisher has passed, she was funnier&smarter than anyone had the right to be. Sail On Silver Girl. Condolences Debbie & Billie R.I.P."
Margaret Cho, who was a friend, also shared a note on social media.
The comedienne wrote: "We just lost a great ally for mental health and addiction. Be strong, be as string as she'd want you to be. Rest in paradise."
The image she shared was a black-and-white one of Carrie in her twenties smiling.
Elizabeth Banks said: "#CarrieFisher was so witty and provocative and unrelentingly interesting. Goddamn, I loved her. Everyone did."
Nick Lachey, a boy bander who used to be married to Jessica Simpson, added: "Prince, George Michael, and now Carrie Fisher..... I feel like my youth is disappearing before my eyes. Never felt so old... #RIP."
Last week her welcomed a new baby with Vanessa Minnillo.
Ralph Macchio said: "Sadness and thoughts for icons of my time. RIP #CarrieFisher #georgemichael."
Mayim Bialik added: '"@missmayim What a woman #CarrieFisher."
Dominic Monaghan said: "You will always be my first crush and the force will always be with you @carrieffisher #rip."
John Leguizamo tweeted: "Dear #carrieFisher every time an artist is born the world gains everytime we lose an artist the world loses! R.I.P."
Family spokesman Simon Halls released a statement on behalf of Fisher's daughter, Billie Lourd: "It is with a very deep sadness that Billie Lourd confirms that her beloved mother Carrie Fisher passed away at 8:55 this morning," reads the statement.
"She was loved by the world and she will be missed profoundly. Our entire family thanks you for your thoughts and prayers."
Fisher was returning home from London on Friday went she went into cardiac arrest before her flight landed at Los Angeles International Airport.
She received emergency treatment on the plane before she was rushed to a hospital, where her brother later reported she was in critical condition.
Her mother, famed actress Debbie Reynolds, reported that she was in stable condition on Sunday.
"Carrie is in stable condition. If there is a change, we will share it. For all her fans and friends, I thank you for your prayers and good wishes," Reynolds wrote on Twitter.