Israeli strike kills at least 73 in northern Gaza, medics say BBC.comLIVE: Huge Israeli attack kills more than 70 in north Gaza’s Beit Lahiya Al Jazeera EnglishIsraeli strikes in northern Gaza cause scores of casualties, doctors say ReutersIsraeli strike kills at least 73 people in northern Gaza, medics say The Washington PostHamas-claimed toll from Gaza strike appears exaggerated, Israeli official says The Times of Israel