Joan Rivers is in a New York City hospital Thursday after she was rushed from a doctor's office when she went into cardiac arrest, police and hospital officials said.
The 81-year-old comedian's condition wasn't immediately known.
"This morning, Joan Rivers was taken to The Mount Sinai Hospital in New York, where she is being attended to. Her family wants to thank everybody for their outpouring of love and support," said Sid Dinsay, a spokesman for Mount Sinai Hospital. "We will provide an update on her condition as it becomes available."
New York City police officials, who spoke on the condition of anonymity because they weren't authorized to publicly name Rivers, said she was taken to the hospital just after 9:30 a.m. Thursday.
Among celebrity birthdays today: Actor-director Lord Richard Attenborough is 91. Director William Friedkin is 79. Actor Elliott Gould is 76. TV personality Robin Leach is 73. Actor Ray Wise is 67. Actress Carla Gugino is 43. Actress-singer Lea Michele is 28. Singer Liam Payne is 21.