A Whittier Police Department officer was arrested this week on suspicion of sexually assaulting two minors in the Inland Empire and San Bernardino County sheriff’s detectives believe there may be more victims.

Francisco “Frank” Igros, 54, of Rancho Cucamonga, was arrested Tuesday, Aug. 7, by San Bernardino County deputies after determining he had molested a 12-year old child in Rancho Cucamonga and a 15-year old in Ontario, according to a Sheriff’s Department news release.

Also, arrested in connection to the case was Lora Nagy, a 41-year-old Rancho Cucamonga resident, according to the release. She was aware of the sexual abuse and did not report it, officials said. Nagy was arrested Thursday, Aug. 9.

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How Igros and Nagy know each other was not immediately disclosed by officials.

Sheriff’s detectives from the Rancho Cucamonga Station were notified by the Whittier Police Department about a sexual assault of the 12-year-old girl in Rancho Cucamonga in April, officials said.

Detectives interviewed the victim and her mother in Whittier and determined Igros was the suspect. Detectives also found there was a second victim.

The Crimes Against Children Detail took over the investigation and later determined Igros sexually molested the 15-year-old victim in Ontario.

It was not known when the crimes against the second victim occurred.

Igros was arrested and booked into the West Valley Detention Center in Rancho Cucamonga on suspicion of four counts of lewd acts with a child, two counts of penetration of a minor under 10 and one count of child endangerment. His bail has been set at $1 million.

Nagy was booked into the Central Detention Center in San Bernardino on the same charges. Her bail was set at $50,000.

Anyone with information is asked to contact Specialized Investigation Division, Crimes Against Children Detail, Detective Janna Kovensky at 909-387-3615. Anonymous tips can be placed by calling 1-800-78-CRIME.