Israeli navy has fired at Palestinian fishermen in the besieged Gaza Strip, violating terms of an Egyptian - brokered ceasefire with the Palestinian territory.No one was injured in the shooting on Friday, but a number of boats were damaged. The Israeli navy has restricted fishing for Gaza fishermen and allows them to catch fish only within three miles from the coast. Gazans are also not allowed to farm in Israeli-declared buffer zone, within 1,500 meters of the border, and this according to UN estimates, has led to a loss in production of about 75,000 tones of produce a year. Israeli troops have shot scores of Palestinian farmers inside Gaza since November 2012 when Tel Aviv signed a truce with Hamas, the democratically-elected government of Gaza. Over 160 Palestinians, including women and children, were killed and about 1,200 others were injured in the Israeli attacks on Gaza between November 14 and 21 and more than 1,500 targets were hit across the Palestinian enclave. In retaliation, Palestinian resistance fighters fired rockets and missiles into Israeli cities, killing at least five Israelis. According to a Hamas spokesman, Israel's eight-day aggression against the Gaza Strip caused more than USD1.2 billion in direct and indirect damages.