Shafrir synagogue shooting
The Shafrir synagogue shooting was a terrorist attack which was carried out by Palestinian militants on 11 April 1956. Three Palestinian militants who crossed into Israel from Egypt attacked the study hall of a synagogue while it was full of children and teenagers, in the farming community of Kfar Chabad (Shafrir).
Source: Wikipedia — Shafrir synagogue shooting (CC BY-SA 4.0)