Family: Joan Rivers on life support

New York — Joan Rivers' family is confirming that the comedian is on life support after going into cardiac arrest last week during a procedure at a doctor's office.

Her daughter, Melissa Rivers, said in a statement Tuesday that her mother is on life support "at this time." Melissa said the family is extremely grateful for the public support.

Joan Rivers was taken to Mount Sinai Hospital in Manhattan last Thursday. The 81-year-old comic and red carpet commentator has maintained a busy career as host of Fashion Police on the E! network and co-star of the WEtv reality show, Joan & Melissa: Joan Knows Best?

Melissa Rivers said Tuesday that she knows that her mother would be overwhelmed by the continuing outpouring of kindness.

Celebrities have taken to Twitter to post messages of support.

Dear @Joan_Rivers, FYI the flowers u JUST sent me r still goin strong! Thinking of U every minute. LUV U #JoanRivers pic.twitter.com/VWXe0Xb85e

— Kathy Griffin (@kathygriffin) September 1, 2014

My thoughts & prayers are with the great #JoanRivers & her family. Joan-we can't wait to hear your jokes about this when you recover! xx

— Ivanka Trump (@IvankaTrump) August 31, 2014

Thinking and praying for Joan Rivers #JoanRivers #MelissaRivers You are a fighter Get Well @Joan_Rivers pic.twitter.com/gwhFbnAc15

— Jerry Springer (@jerryspringer) August 30, 2014

I’m thinking about you, @Joan_Rivers, and sending lots of love your way.

— Ellen DeGeneres (@TheEllenShow) August 28, 2014

Praying for @Joan_Rivers and @MelRivers. Even though Joan's the strongest woman I know, every single prayer counts. I love you, Joan

— Giuliana Rancic (@GiulianaRancic) August 30, 2014

4 the first time in years I got down on my knees & prayed tonight! I encourage U 2 do the same 4 @Joan_Rivers my grandma! #inconsolable

— Kelly Osbourne (@KellyOsbourne) August 30, 2014

Praying for the great @Joan_Rivers one of the true loves of my life. ??

— Kelly Ripa (@KellyRipa) August 28, 2014