Kelly Osbourne suffered a seizure and was hospitalized on Thursday, Access Hollywood has confirmed.
Kelly, 28, was taping her E! series, "Fashion Police," when she all of a sudden didn't feel well.
Filming stopped and she was given some water. As the cast and crew looked on, she began to experience a seizure, a source close to the star, told Access.
Melissa Rivers - who was guest co-hosting -- was seated next to Kelly and was able to grab her and help bring her to the ground.
A member of the live studio audience, who was reportedly a medical professional, rushed to the stage to help Kelly.
Following the seizure, Kelly was taken by ambulance to a Los Angeles-area hospital. Blankets shielded the star as she was taken to the ambulance via stretcher.
A few hours later, a rep for Kelly told Access Hollywood her condition was "stable."
"Kelly Osbourne fainted on the set of E!'s Fashion Police today. She was taken to a local hospital for further testing and is awake, alert and in stable condition. She will be staying overnight for observation as a precautionary measure. There are no further details at this time," a rep for the star told Access in a statement.
Copyright 2013 by NBC Universal, Inc. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.