Gaza rally blast kills 15 Palestinians

JEBALIYA, Gaza Strip -- A truck filled with masked militants and homemade weapons exploded at a Hamas rally yesterday, killing at least 15 Palestinians and wounding 80 -- including children -- bringing a grisly and terrifying end to one of the last gatherings by armed groups celebrating Israel's Gaza pullout.Witnesses said many children were among the casualties.Hamas said six militants were killed, including Jihad Shaleal, head of the group's military wing in Jebaliya. Hamas blamed Israel, but the Israeli military denied any connection. Palestinian security officials said the blast was an accident.