Israeli forces bombarded houses in overnight attacks in the northern Gaza Strip, including one airstrike that killed at least 15 people in a home sheltering displaced people in the town of Beit Lahiya, Palestinian medics said on Monday.The three barely operational hospitals in the area were unable to cope with the wounded from the attack, and a number of other people were still missing with rescue workers unable to reach them, the Palestinian Civil Emergency Service said.Residents said clusters of houses were bombed and some set ablaze in Jabalia, Beit Lahiya and Beit Hanoun, three towns on the northern edge of the Gaza Strip where the Israeli army has been operating for weeks.For the latest updates on the Israel-Palestine conflict, visit our dedicated page.They said Israeli drones had also dropped bombs outside a school sheltering displaced families in Beit Lahiya, part of what residents have described as a campaign to scare people into leaving.Palestinians say Israel’s army is trying