Kelly Osbourne Rushed to Hospital After Suffering a Seizure On Set (UPDATE)

Kelly Osbourne was rushed to a hospital during a taping of her E! show Fashion Police today, after she suffered an apparent seizure on set.

According to TMZ, in the middle of a taping before a studio audience, Osbourne turned to fashion critic Melissa Rivers who was seated next to her, and said "I don't feel good." Then she fell out of her chair and began shaking.

Rivers (who was filling in for regular co-host Giuliana Rancic) reportedly got on the floor to stabilize Osbourne's head, while a member of the audience—described by TMZ as "some kind of emergency responder"—ran up to assist.

The website says that Kelly stopped convulsing a few minutes later, and was soon removed to the hospital via ambulance. Her current condition is unknown. Also unknown is what triggered the incident.

Unrelated, Kelly's younger brother, Jack, announced last year that he had been diagnosed with Multiple Sclerosis. Kelly has not been diagnosed with MS.

UPDATE: Joan Rivers, Osbourne's Fashion Police co-star told TMZ this afternoon "She is fine. We just saw her." So if Joan Rivers' seasoned medical opinion is the only one you need, Kelly is fine.

[TMZ // Image via Getty]