LAS VEGAS - North Las Vegas police said a man they’ve arrested for sexual assault might have victims in Alaska.

Detectives are investigating reports that 44-year-old Juan Alberto Ruan-Rivera sexually assaulted several victims while claiming to be a doctor.

Three victims have come forward: a 51-year-old Las Vegas woman, a 27-year-old California woman, and a 5-year-old Las Vegas boy. The abuse reportedly occurred in the suspect's North Las Vegas home from 2006 to the present.

Detectives said Ruan-Rivera spent time in Anchorage and while in town met one of the victims who he’s been charged with assaulting.

Officer Chrisse Coon, with the North Las Vegas Police Department, said Ruan-Rivera targeted undocumented Hispanics.

“It appears that the primary targets in this case are illegal immigrants that possibly don’t have any health insurance, and are looking for alternative treatments or alternative medications to chronic illnesses,” said Coon.

“So really targeting people who are desperate for healthcare and they can't afford to go to a regular doctor.”

Reports allege Ruan-Rivera claimed to be a doctor, chiropractor or therapist who was licensed in Mexico. He also claimed to be a distributor for Omnilife Natural Supplements.

“It’s alleged that some people had contacted Omnilife looking for a local distributor and that may be how people came in contact with this individual,” said Coon.

Ruan-Rivera reportedly administered medications to the victims, which made them drowsy, then allegedly assaulted them after they were sedated.

Anyone who recognizes Ruan-Rivera or had contact with him while he posed as a doctor are urged to call police officers in Las Vegas. You can reach them at 702-633-9111 or you can contact the Anchorage Police Department at 786-8900.