Nearly 100 children had to be evacuated from their pre-school in central Israel, after Arab Muslim construction workers at a nearby building site began hurling rocks into the school through a window, while making vulgar gestures towards staff members.

INN The incident took place in a preschool in the city of Givatayim east of Tel Aviv Sunday, when most of the preschool’s 90 three-year-olds and four-year-olds were inside the building, either in music class or in the activities room.

When one of the preschool staff members walked into the kitchen, workers from a nearby construction site began hurling rocks through the preschool’s kitchen window. The staff member shouted at the Muslim workers to halt their attack, but to no avail. Thankfully, no one was hurt.