Explosions heard in northern Israeli cities
Explosions have been heard in northern Israel, near the border with Lebanon.
Reports say that air raid sirens were heard across northern Israel around the time of the blasts, but no casualties were reported.
Lebanese and Israeli officials said that four rockets had been fired from southern Lebanon, a stronghold of the Shia Islamist movement Hezbollah.
Rockets have been fired into Israel intermittently by militant groups since the Israel-Hezbollah conflict in 2006.
Sirens were heard across the area, including in the towns of Nahariya and Kiryat Shemona.
However, an Israeli army spokesman told the BBC that Hezbollah did not carry out the attack.
Israel believed "global jihad organisations" were behind the attack, he said.
Army radio said that one of the rockets was intercepted by the country's Iron Dome anti-missile defence system.