Veteran comic Joan Rivers has reportedly been rushed to hospital following complications during surgery.

According to TMZ, the 81-year-old star was reportedly undergoing an operation on her throat when she stopped breathing.

The site reports that she stopped breathing during a procedure on her vocal cords at a clinic, and was subsequently taken to Mount Sinai Hospital in New York City.

Her daughter and frequent E!'s Fashion Police co-star, Melissa Rivers (46) and Melissa's son, Cooper (13) took a morning flight to New York to be by her side.

The NYPD reportedly told TMZ that Rivers is in a critical condition, but her condition was later confirmed by the hospital to be stable.