The website claims the 81-year-old comedian was rushed to a New York City hospital when she stopped breathing during an operation on her vocal chords, which was taking place in a clinic.
TMZ add that Joan’s daughter Melissa is believed to be on her way to the hospital.
The comedian currently presents E!’s show ‘Fashion Police’ and filmed the show’s VMAs and Emmys special earlier this week.
Joan is one of the many celebs who has taken part in the Ice Bucket Challenge craze and while she’s well known for making controversial comments, she recently praised Kim Kardashian and Kanye West.
Speaking about the couple’s Vogue cover, Joan stated that she thought the pair were “sensational”, adding that they look “really, really gorgeous”.