Heavy battles and bombardment hit Gaza City’s Shejaiya district for a fourth day on Sunday, months after the Israeli army declared Hamas’s command structure dismantled in the northern area. Tens of thousands of Palestinians have fled the devastated neighbourhood, where the army said it has fought Hamas and Islamic Jihad militants both “above and below ground” in tunnels. The military said troops had “eliminated several terrorists, located weapons and conducted targeted raids on booby-trapped combat compounds” over the past 24 hours while the air force had “struck dozens” of the militants’ infr…