Beirut, Lebanon ---Lebanon's Iran-backed Hezbollah group warned that Israel's killing Tuesday of the deputy Hamas leader in a Beirut suburb they control "will not go unanswered or unpunished". Hezbollah called it "a serious assault on Lebanon". "We, Hezbollah, affirm that this crime will not go unanswered or unpunished," the movement said in a statement that called it "a serious assault on Lebanon... and a dangerous development in the course of the war," the statement added. An Israeli strike killed Saleh al-Aruri, deputy head of the Hamas movement, in a southern Beirut stronghold of Hamas ally Hezbollah, two security officials told AFP. READ:Israeli drone kills d...Keep on reading: Hezbollah says Israel killing of Hamas deputy ‘will not go unanswered’