In Lebanon, one in five people have been forced to leave their homes since fighting renewed in March. The BBC's Middle East correspondent Hugo Bachega joined paramedics on duty in Nabatieh - a city that was once vibrant, but is now abandoned. Israel say some ambulances and health facilities in Lebanon are being used by Hezbollah - but paramedics say there is no evidence of this claim. Elsewhere, the Israel Defense Forces said troops had killed more than 20 Hezbollah fighters operating from a