MIAMI — Several possible victims have come forward alleging that a woman posing as a Florida doctor and promising buttocks enhancement pumped their behinds with a toxic concoction of cement, super-glue and flat-tire sealant, state health officials said Tuesday.

Oneal Ron Morris, who police say was born a man and identifies as a woman, was arrested Friday and charged with practicing medicine without a license with serious bodily injury resulting. Morris had been sought for nearly a year.

Authorities say a victim who was looking to get a job at a nightclub and wanted a curvier figure paid Morris $700 for the injections in 2010. Morris allegedly used some type of tubing and inserted the toxic chemicals into her backside during a painful procedure.

State health officials said Tuesday that several possible victims have since come forward alleging Morris performed similar procedures resulting in life-threatening injuries. Officials did not provide details.

The 30-year-old Morris has since been released from jail on bond. A phone listing for Morris could not be found, and it’s unclear if she has an attorney. Police say Morris performed the same surgery on herself.

Authorities said Morris may be part of an underground plastic surgery ring in South Florida. Health officials said additional arrests are possible, but did not elaborate because it’s an ongoing investigation.