Palestinian sources say explosion collapses tunnel under Gaza-Egypt border early trapping five al-Aqsa members inside Palestinian sources said an explosion collapsed a tunnel under the Gaza-Egypt border early Friday, trapping five militants inside and killing at least two. The Al Aqsa Martyrs’ Brigades, a violent offshoot of the Fatah movement of Palestinian President Mahmoud Abbas, said the five were members. The group refused to say what they were doing. The militant group said the explosion was not caused by an Israeli air strike, after first blaming Israel. The Israeli military said it had no forces inside Gaza and denied involvement...