Israel’s navy shot at Palestinian fishermen off besieged Gaza on Saturday, forcing them to head back to land, sources said. The navy shot live rounds and tear gas at the Palestinians, who were six nautical miles off the coast, official Palestinian news agency Wafa cited its correspondent as saying. It comes exactly a week after Israel’s navy shot machine guns at Palestinian fishermen off Gaza, causing them to turn back out of concern for their safety or of being detained, according to sources. Israel routinely abuses Palestinians in both the besieged Strip and the occupied West Bank, where loc…