Leaders of Israel's Arab community on Wednesday said they'll head to Gaza on a boat laden with humanitarian aid to defy their government's blockade of the territory. Zahi Nujeidat, a spokesman for Israel's Islamic Movement, said dozens of Arab Israelis will set sail Sunday from Jaffa. So far, international activists have made three successful boat trips from Cyprus to Gaza. However, Israel's navy turned away a Libyan vessel earlier this week. Despite the blockade, more ships plan to set sail, including from Qatar.