An Israeli tank fired on the headquarters of the UN peacekeeping mission in southern Lebanon, resulting in two members of the force being injured, the UN said on Thursday. The United Nations Interim Force in Lebanon (UNIFIL) said an Israeli army tank had directly hit a UN observation post in the small city of Naqoura. These are the first casualties among the force since Israel’s ground offensive against the pro-Iranian Hezbollah militia in Lebanon began last week. UNIFIL said the peacekeepers were injured after an Israeli tank “directly” hit the watchtower, causing the two to fall. “The injuri…