Lindsay LohanDawn Holland, a Betty Ford Center staffer who claimed Lindsay Lohan assaulted her, has been fired from the treatment center, RadarOnline reports. "Betty Ford Center terminated me, and I'm now going full force," she said. "[It was] due to breach of patient confidentiality because I did an interview with TMZ," she added.

Riverside County sheriff's detectives said Tuesday they are investigating the 'Mean Girls' star for an alleged altercation with a worker at a Betty Ford Center facility in Palm Desert, Calif., that occurred after 1AM on Dec. 12. The agency declined to say what prompted the fight, but said the worker was interested in pursuing charges against Lohan.

Betty Ford spokesman Russ Patrick said the staffer was fired for identifying patients at the center in the interview, "disclosing a privileged document" and violating HIPAA laws.