Home Front Defense Minister Matan Vilnai said on Tuesday that "we do not know who fired the Katyusha rockets. But we should demand answers from the Lebanese government." In an interview with Army Radio, Vilnai explained that Hezbollah is in crisis because of the collapse of the Assad regime in Syria, but that does not necessarily mean that they were behind the attack. "We live in a volatile region; there are constant threats against us," Vilnai said.RELATED:IDF fires on Lebanon after 4 rockets land in NorthFour 122 millimeter Katyusha rockets were fired from within Lebanon, just north of the border with Israel, landing in the Western Galilee overnight Monday. No injuries were reported in the attacks. The rockets landed close to the Lebanese border, causing some damage to a chicken coop and a gas tank. Firefighting crews were called in to cool down a propane gas tank that was struck.The IDF responded by firing artillery shells in the direction of the village of Aita al-Shaab, the area which the Lebanese rockets were fired from.