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  (Photo: Reuters/Danny Moloshok)
  Singer and actress Kelly Osbourne arrives at the 63rd Primetime Emmy Awards in Los Angeles September 18, 2011.

Kelly Osbourne suffered a seizure while on the set of her show "Fashion Police" but was quickly attended to by professionals and remains hospitalized as doctors try to figure out what led to the episode. Osbourne has used Twitter to update fans and thank them for their support.

"Thank U all 4 UR beautiful well wishes, yes I did have a seizure they are just trying to figure out why (sic)," the co-host of "Fashion Police" tweeted yesterday.

The episode took place after the filming of an episode; Osbourne allegedly told co-host Melissa Rivers that she wasn't feeling well, and Rivers was able to help lay her on the ground once the seizure began. A member of the audience, a medical professional, ran to check on Osbourne and assist until paramedics arrived.

She was then taken to a local hospital in Los Angeles for evaluation and treatment, though doctors are still uncertain what led to the episode. The first reports from Osbourne's representative said that she was "stable" and then, later, Osbourne began tweeting fans to reassure them she was okay.

"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," a statement from Osbourne's representative said at the time.

Osbourne has had a rough month, given that it wasn't too long ago that she fell in a public restroom and, in order to avoid falling and hitting her head on the toilet, sprained her ankle.

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Fans and fellow celebrities have tweeted their encouragement and well wishes to Osbourne.

"I'm thinking about you. Hope you're ok and get well soon. Xox," tweeted Wendy Williams.

"Sending prayers!" added Perez Hilton.