Lebanon's Iran-backed militant group Hezbollah said it targeted a command base in northern Israel on Tuesday in retaliation for the killings of one of its commanders and a Hamas leader.Hezbollah said the attack was part of its response to the killings of top field commander Wissam Tawil on Monday and Hamas deputy leader Saleh al-Aruri on January 2.The Shiite Muslim movement, a Hamas ally, said in a statement that it had targeted the "enemy's northern command centre" in the Israeli city of Safed with "several suicide drones".