MASTIC BEACH, N.Y. (CBSNewYork) — A registered sex offender has been arrested for allegedly placing a video camera in a dressing room at a fashion show over the summer on Long Island.

Robert Liguori, of Mastic Beach, had apparently been hired as a photographer at a Southampton swimsuit fashion show in July.

READ MORE: NYPD: Man Stabbed In Thigh During Robbery In Theater District

The 51-year-old placed a hidden video camera inside the dressing room and recorded four women disrobing, police said.

One of the victims spotted the camera and reported it to authorities, sparking an investigation, police said.

READ MORE: Connecticut Man Who Tested Positive For Omicron Variant Resting At Home With Mild Symptoms, Gov. Lamont Says

Liguori faces four counts of unlawful surveillance and three counts of attempted surveillance in connection with the incident.

In 2000, Liguori was convicted of disseminating indecent materials to a minor after being arrested by Immigration and Customs Enforcement, according to the NY Sex Offender Registry.

MORE NEWS: Family OK, But Material Losses Significant As Fire Destroys North Bellmore Home

Liguori was also arrested on a stalking charge two weeks ago, police said.