PARAMUS - Two Paramus Catholic High School employees arrested yesterday for alleged sexual misconduct involving four teenage females have been released on bail.

Artur Sopel and Michael Sumulikoski were charged with sexual assault, endangering the welfare of a child and hindering apprehension, according to the Bergen County Prosecutor's Office. Both entered "not guilty" pleas at their arraignment.

Sopel is listed as vice president of operations at the school and Sumulikoski is a teacher. The Bergen County Prosecutor's Sex Crimes Unit arrested the men after a monthlong investigation.

The prosecutor's office said the men engaged in inappropriate sexual conduct with four teenage female students who attended the school. Both were serving as chaperones on a class trip to Germany. Prosecutors say the men sexually assaulted three of the students during the trip.

The Archdiocese of Newark says it looks into the backgrounds of every potential hire, but in this case, there were no red flags for either person.