CNN is investigating the clinic , its spokesman says . Rivers was on life support and died at a New York hospital Thursday afternoon , a week after suffering cardiac arrest during a medical procedure , her daughter said . Joan Rivers stopped breathing at The New York State Department of Health clinic Thursday . Joan Rivers died Thursday afternoon at a New York hospital . The clinic has not responded to CNN requests for comment .
CNN is investigating the clinic , its spokesman says . Joan Rivers stopped breathing at The New York State Department of Health clinic Thursday . Joan Rivers died Thursday afternoon at a New York hospital . The clinic has not responded to CNN requests for comment .