A Dix Hills man was arrested for exposing himself in front of a school in Uniondale on Jan. 17, Nassau County police said.

According to police, Willian Portillo Melara, 29, was sitting in his car, a white Honda Pilot, on Dale Place near Smith Street School on Jan. 17 when he was allegedly observed exposing and touching himself by a 22-year-old woman.

The woman went across the street to alert school security, according to police. When the security guard approached Melara’s car, he quickly drove away.

After an investigation, Melara was arrested on Jan. 18, charged with public lewdness and  released on an Appearance Ticket. He is due back to First District Court in Hempstead on Feb. 4.

Detectives are asking anyone who feels they have been victimized by Melara to call Nassau County Crime Stoppers at 1 (800) 244-TIPS. All calls will be kept confidential.