UPDATE: Joan is in stable but critical condition, according to E! Online.
ET can confirm that Joan Rivers was rushed to the hospital on Thursday and was in critical condition.
The DCPI (Deputy Commissioner, Public Information) tells ET a call was placed around 9:40 a.m. that an 81-year-old female patient at Yorkville Endoscopy on East 93rd street, near Third Avenue, in New York City was transported to Mount Sinai Hospital
A spokesperson for the hospital confirms, "This morning, Joan Rivers was taken to The Mount Sinai Hospital in New York, where she is being attended to. Her family wants to thank everybody for their outpouring of love and support. We will provide an update on her condition as it becomes available."
According to reports, the comedienne was having throat surgery, a "minor endoscopic procedure," done at a New York City clinic when she stopped breathing. She was taken to Mount Sinai Hospital where her daughter Melissa and her 13-year-old son Cooper are flying out to be by her side.
After news of her condition broke, several of her friends took to Twitter to send out their positive thoughts.
All good thoughts and prayers to Joan Rivers!!!!!!!!!!!— Andy Cohen (@Andy) August 28, 2014
Sending all my love and prayers to my friend @Joan_Rivers right now.— Jesse Tyler Ferguson (@jessetyler) August 28, 2014
sending so much love and healing energy to @Joan_Rivers !!! no one is ready to go on without you lady!!!— Zachary Quinto (@ZacharyQuinto) August 28, 2014
Love and prayers for Joan Rivers,,— Bernadette Peters (@OfficialBPeters) August 28, 2014
Praying for the great @Joan_Rivers one of the true loves of my life. 🙏— Kelly Ripa (@KellyRipa) August 28, 2014
Get well @Joan_Rivers! And moon the doctors for us while you're recuperating! ☺️💛 XX MM— Marlee Matlin (@MarleeMatlin) August 28, 2014
Over the summer, ET was with Rivers while she was promoting her book, Diary of a Mad Diva, and caught her officiating a gay wedding. Check out the brighter moment, below, and leave your well wishes for the comedian in the comments.