Once again the Israeli Navy fired on Palestinian fishermen who were fishing inside the six-mile nautical zone negotiated in the ceasefire signed after Israel's two-month assault on Gazans last summer. With F-16 fighter planes flying overhead, the fishermen were forced to leave the area immediately. For the second day in a row, Israel kept the Kerem Shalom border crossing open, allowing 679 truckloads of humanitarian aid to enter the Gaza Strip.