N.Y. Health Dept. Investigating Joan Rivers' Hospitalization

Joan Rivers - H 2014
Photo by Evan Agostini/Invision/AP

The comedian was rushed to Mount Sinai last week

The New York state health department is investigating Joan Rivers' hospitalization, The Hollywood Reporter has confirmed.

Rivers was rushed to Mount Sinai Hospital last Thursday morning. She was hospitalized after she stopped breathing while undergoing surgery on her vocal cords at an Upper East Side clinic, various outlets reported, with ABC News and the Associated Press later reporting that the comedian had gone into cardiac arrest.

Rivers was initially reported to be in critical condition, but a source later told E! News that her condition had been upgraded to stable.

On Wednesday, Rivers was moved out of intensive care and into a private room where she was "being kept comfortable," daughter Melissa Rivers said in a statement.