Israel's lawmakers have voted to impose a minimum three-year jail sentence on stone throwers, the Knesset website said, weeks after the premier vowed "war" on those who pelt security forces with rocks. The law was approved late Monday by 57 votes against 17 and comes as a surge of unrest in Israel and the occupied West Bank has entered its second month. The new legislation was backed by the government of Prime Minister Benjamin Netanyahu who declared "war" in September on stone throwers.