Hamas says political leader Ismail Haniyeh assassinated in Tehran

Israeli in serious condition after stabbing attack in West Bank ■ 'Despicable act:' Palestinian President Abbas denounces killing of Hamas leader Hanniyeh in Tehran ■ Israel closes airspace north of Hadera ■ Defense Secretary Austin says war in Middle East not inevitable, U.S. would defend Israel if it was attacked ■ Military court extends arrest of eight soldiers suspected of sexually abusing Gazan detainee ■ Lebanese Health Ministry: Four killed, 74 injured in Israeli airstrike on Beirut ■