sentences:  A second group tried to flee from the north of Nahr al-Bared and met the same fate.The leader of Fatah al-Islam, Shaker al-Abssi, was believed to be in the third group that followed the path of a river running between the southeastern part of the camp and the village of Ayun al-Samak in a remote mountainous region.Several members of that group were killed but most of them escaped.