Palestinians in Gaza fired a rocket Tuesday evening that exploded in the courtyard of a school in Ashkelon, a city of 120,000 on Israel’s coast. The rocket was fired from northern Gaza, from the area of the former settlement of Dugit which has recently turned into a popular site for Kassam rocket launchers. The rocket landed inside the Ronson high school, close to the Ashkelon Academic College. A large number of parents and students were present at the school at the time, though there were no injuries. Izz a-Din al-Qassam, Hamas’ military wing, claimed responsibility.