Israeli troops kill boy, two men in Gaza protests: medics

The Israeli military said it used force necessary to repel13,000 Palestinians who massed at several points at the fence.Some hurled rocks, fire-bombs and grenades at troops under cover of smoke from burning tyres, injuring a soldier, and nine Palestinians briefly crossed into Israel, the military said.Friday's dead brought to 177 the number of Palestinians killed since the sometimes violent demonstrations were launched on March 30 to press demands against Israel.