In Jerusalem BBC correspondents reported hearing sirens and seeing Israel's Iron Dome missile defence system in operation, which uses radar to track rockets and can differentiate between those that are likely to hit built-up areas and those that are not. Interceptor missiles are only fired at rockets expected to strike populated areas. A few of the ballistic missiles got through and struck Israeli territory, Rear Adm Hagari said. One of them "lightly hit" the Nevatim air force base in the Negev desert in southern Israel. Rear Adm Hagari said the base was "still functioning".