JERUSALEM—Two rockets were launched into Israel from Lebanon overnight on Tuesday, setting off sirens but causing no damage or injuries, and the Israeli military said it had responded with artillery fire. Israeli Defence Minister Benny Gantz suggested the incident could be linked to long-running governance problems rocking Lebanon and the influence of the Iran-backed terrorist group Hezbollah. One of the rockets was shot down by missile defences and the other landed in an open area, the military said. The Lebanese army said Israel had fired at the Wadi Hamoul area at dawn but that no injuries or damage had resulted. It said three Grad rocket launchers had been found in the Al Qulaylah area, one of them with a rocket prepared for firing that was subsequently disabled by the army’s specialised units. Israel fought a 2006 war against Hezbollah, who have sway in southern Lebanon and advanced rockets. The border …