Popcrush.com is reporting that Joan Rivers was rushed to the hospital on Thursday morning. Michelle McGahan posted, "UPDATE: At 12:34PM ET on Aug. 28, E! News reporter Ken Baker tweeted that Joan Rivers was in stable condition.

Joan Rivers was apparently rushed to the hospital Thursday morning and was, at one point, listed in critical condition, TMZ reports.

The 81-year-old comedienne supposedly stopped breathing while undergoing a throat procedure at a clinic this morning.

Michael Loccisano, Getty Images
Michael Loccisano, Getty Images
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A 911 call was reportedly placed around 9:30 AM relaying that “somebody [is] in either cardiac or respiratory arrest.” Sources told the site that at one point Rivers’ heart had stopped beating.

TMZ reports that the ‘Fashion Police’ host is currently at Mt. Sinai Hospital in New York City, and Rivers’ daughter Melissa is en route to her mom. The NYPD reportedly told the site that Rivers was, at the time, in critical condition.

In June, Rivers released her latest book, ‘Diary of a Mad Diva,’ and this past weekend she hosted a special 2014 MTV VMAs episode of ‘Fashion Police,’ where she was just as brash and feisty as ever.

Our thoughts are with Joan Rivers and her family."

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