On afternoon of Thursday, March 7 TMZ reported that Kelly Osbourne had a seizure on the set of her E! Network show Fashion Police. Shortly after, an ambulance arrived and took Osbourne to a nearby L.A. hospital.

Osbourne was reportedly shooting the TV show with a live studio audience at the time of the seizure. The TMZ report states that she told Melissa Rivers that, “I don’t feel good,” before falling to the ground, shaking. Though she regained consciousness soon after, she was still taken to the hospital as a precaution.

Osbourne confirmed late last night through her Twitter feed that she did, indeed have a seizure. Doctors are currently trying to pin down the cause of the emergency.

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(image) Kelly Osbourne
@MissKellyO

Thank U all 4 UR beautiful well wishes yes I did have a seizure they are just trying to figure out why? http://t.co/pyZV4rDXsY
(image)

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9 hours ago via Twitter for iPhone · powered by @socialditto

Osbourne is currently engaged to Matthew Mosshart and the two are planning to marry this summer. Last December Osbourne spoke about her recent 50-pound weight loss, saying, “I made a life change, and the weight loss was an amazing perk.”