Smoke billows from a site targeted by Israeli shelling in the southern Lebanese village of Zaita.MAHMOUD ZAYYAT/AFP via Getty ImagesIsraeli airstrikes targeted Hezbollah weapons sites in southern Lebanon on Monday.More than 550 people were killed and 1,800 injured as the Israel-Hezbollah conflict escalates.Photos reveal chaos and devastation from Israel's attacks on Hezbollah in civilian areas.Plumes of smoke billowed above villages across southern Lebanon as Israeli airstrikes targeted Hezbollah missiles they say are stored in civilian homes.More than 550 people were killed and another 1,800 injured in Lebanon in the first day of strikes, according to the country's health ministry, as hostilities between the Israel Defense Forces and the Iran-backed militant group continue to escalate toward a full-scale war.