This undated photo released by the Israel Defense Forces on Friday, March 21, 2014, that they claim shows a tunnel dug from the Hamas-ruled Gaza Strip that stretches hundreds of meters (yards) inside Israel. The Israeli military says it has discovered another tunnel — the biggest so far — dug from the Hamas-ruled Gaza Strip into Israel and says it was intended for attacks on soldiers and civilians. Hamas spokesman Abu Obeida blamed the tunnel's discovery on recent rains that exposed its opening. (AP Photo/Israeli Defense Forces)