BBC Verify examines the pattern of air strikes in Beirut following recent exchanges of missiles and rockets across the Israel-Lebanon border. Two air strikes hit central Beirut without warning, resulting in 22 deaths and over 117 injuries. The Israeli military claims that Hezbollah has fired hundreds of missiles, with many targeting northern Israel. Nick Eardley from BBC Verify analyzes the movement of Israel's offensive northwards since the escalation in fighting last month.