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The incident happened at PS 84, The Lillian Weber School, on Manhattan's Upper West Side.

Police say Hany Abdalla, 35, was arrested Wednesday and charged with endangering the welfare of a child along with sex abuse.

DOE officials say Abdalla has worked as a teaching assistant at the school since 2007.

Parents say this incident and arrests at other schools have them worried about their child's safety.

"If this can happen at a school where parents are so involved they're at the school everyday, it's really frightening," said one concerned parent.

"My grandson goes in here, I don't know what's going to happen," said a concerned guardian. "It seems like every school is doing the same thing. Every time you turn around there's a teacher that's messing with the children."

Officials say Abdalla has been suspended without pay.

So far this year, eight other DOE employees have been accused of crimes of a sexual nature against students.