From the United Nations, where the Un Secretary general Antonio Guterres said violence in lebanon must stop now, he is gravely concerned by the dramatic escalation of events In Beirut in the last 2a hours, this cycle of violence must stop and all sites must step back from the brink of war. The people of lebanon, israel, and the wider region cannot afford an all out war. Have a Security Correspondent Frank Gardner reports on the latest escalation of conflict between israel and hezbollah. Heavy artillery fire. A devastating blow inflicted by israel, hitting the heart of hezbollah s Command Centre In Beirut. Within hours, the israeli military announced they had eliminated, as they put it, the groups leader. Hassan nasrallah had been Secretary General of hezbollah for 32 years, overseeing its growth into the worlds most heavily armed non state army. He was born in lebanon in 1960, growing up In Beirut s eastern bourj hammoud district. He took over the leadership in 1992 when his predecesso