UPDATED: SHARON OSBOURNE Assaulted!!

Sharon Osbourne was "viciously assaulted" Thursday night at a Los Angeles restaurant where she was having dinner with her family, a spokesperson for the Osbournes has confirmed to BLABBERMOUTH.NET.

Osbourne was allegedly attacked by Renée Tab, a junior agent at ICM, who was previously accused by Sharon and Ozzy of crashing their New Year's Eve anniversary party and stealing a pricey door prize.

The incident occurred Thursday evening at Koi Japanese restaurant on La Cienega Boulevard, where Osbourne, husband Ozzy and their son, Jack, were dining, Sgt. John Pasquariello said.

Tab has since filed a police report of her own, claiming that "(Sharon) started with spitting on her and calling her names," said Tab's attorney, Nejila K. Brent.

Tab said Osbourne was waiting for her to leave and then spit on her, while Osbourne claims she was physically struck by Tab, according to police.

"What we just did was take two reports listing each other as suspects and victims on each one," Pasquariello said. "The city attorney will determine at some point whether there's any criminal involvement."

If charges are filed, he added, they would be "on the low end of the misdemeanor scale."

In early January, the family publicly accused Tab of walking off with a $15,000 Asprey diamond necklace obtained with an illegitimate raffle ticket, identifying her only as an employee of talent agency ICM.

A short time later, ICM issued a statement denying the allegations made against its employee, who had by then been identified as Tab. An ICM spokesperson said the company had investigated the matter and determined "a) Renée was invited to the Osbourne party b) she won the raffle in a legitimate matter c) there is no basis for the claims being made by the Osbournes. Accordingly, ICM believes the Osbournes owe both Ms. Tab and ICM an apology."

Mrs. Osbourne was taken to the hospital and treated for her injuries. She is at home resting and recuperating with her family, according to her spokesperson.