A boat trying to deliver food and medical supplies to Gaza returned to Cyprus Thursday after Israeli naval vessels forced it to turn back midway through the voyage. Organizers vowed to try the journey again at a later date. Free Gaza organizer Huwaida Arraf said naval vessels surrounded the 20-meter Greek-flagged boat about 115 nautical miles from Gaza and threatened to open fire if it did not turn back. "They were cutting in front of us, almost colliding with us," Arraf said. The IDF said navy ships warned the boat to turn back because it was entering a war zone subject to a naval blockade. The ship turned back without incident, the army said.