Jerusalem (CNN) -- Rockets coming from Lebanon smashed into northern Israel on Sunday near the town of Kiryat Shmona, the Israel Defense Forces said. Israeli forces fired toward the source of the launch, the IDF said. At least 20 Israeli rockets landed in southern Lebanon, according to the IDF and the Lebanese official National News Agency. There were no initial reports of injuries on either side. Prime Minister Benjamin Netanyahu, at the weekly meeting of the Israeli Cabinet, said he blames the Lebanese government for allowing Hezbollah to position rockets in neighborhoods while attacking civilians. "This is a double war crime that is being perpetrated under the aegis of the Lebanese government and army, which are not lifting a finger to prevent this arming and these crimes," he said. He said the IDF responded quickly and forcefully. "We will not allow a drizzle, and we will respond strongly," he said.
NEW: Israeli PM says attacking civilians while hiding among population is "double war crime" No immediate reports of anyone being injured . Israeli military, Lebanese media say at least 20 rockets fired in retaliation .