There have been renewed rocket alerts in Israel in the early hours of Tuesday, the Israeli army reported, with sirens sounding in communities along the border with the Gaza Strip. An Israeli website which gives live rocket alert updates corroborated the army’s information. Israel’s army has stepped up its operations against the Islamist group Hamas in the Gaza Strip, after Israeli Prime Minister Benjamin Netanyahu said during a troop visit to the sealed-off coastal strip that Israel would “intensify the fight in the coming days.” Netanyahu spoke of a long battle, the end of which was not in si…