LOS ANGELES -

Kelly Osbourne was rushed to a Los Angeles hospital Thursday following a seizure, according to TMZ.

Osbourne was in the middle of taping a segment for her show "Fashion Police" at the E! building just before noon when she reportedly turned to Melissa Rivers, who is filling in for Giuliana Rancic, and said, "I don't feel good."

TMZ reports Osbourne then fell out her chair and went into convulsions.  Someone from the audience then ran up to help.

Osbourne was transported out of the building on a gurney and covered with a sheet, likely to protect her identity.

Her condition has not been released.