Thousands of Palestinians fled their homes in a Gaza town on Sunday after Israeli occupation forces warned them to leave ahead of threatened attacks on rocket-launching sites, on the sixth day of an offensive that Palestinian officials said has killed more than 160 people, according to Reuters. Israeli forces dropped leaflets into the town of Beit Lahiya near Gaza's northern border with Israel. They read: "Those who fail to comply with the instructions to leave immediately will endanger their lives and the lives of their families. Beware." The Israeli military told the residents of three of Beit Lahiya's 10 neighbourhoods to get out of the town of 70,000 by midday on Sunday. U.N. officials said some 4,000 people had fled south to eight schools run by the world body in Gaza City. A senior Israeli military officer, in a telephone briefing with foreign reporters, said Israel would "strike with might" in the Beit Lahiya area from the late evening hours on Sunday.