Rivers, who was undergoing a procedure on her vocal cords at an Upper East Side clinic, was rushed to Mt. Sinai Hospital in "cardiac and respiratory arrest" shortly after 9:30 AM, according to FDNY. Rivers was soon upgraded from critical to stable condition on Aug. 28.
According to CNN.com, Rivers' daughter, Melissa Rivers, issued a statement Aug. 29, saying her mother, "would be so touched by the tributes and prayers that we have received from around the world...her condition remains serious but she is receiving the best treatment and care possible. We ask that you continue to keep her in your thoughts as we pray for her recovery."
Playbill.com will continue to update.
Rivers made her Broadway stage debut in Fun City and later was a replacement player in Neil Simon's Broadway Bound. A stand-up comic making guest-host appearances on "The Tonight Show," Rivers eventually hosted her own talk show, "The Joan Rivers Show." She received a Tony Award nomination for Best Actress for her work in Sally Marr...and Her Escorts — which she also co-wrote. Her most recent theatrical outing was in her autobiographical A Work in Progress by a Life in Progress. Rivers frequently performs her stand-up act at the Laurie Beechman Theatre in midtown Manhattan.