NEW : `` We 're checking it out because we do n't target civilians . The proposed period of calm is expected to last five hours July 7 . Deaths of one children in U.S. camp a `` war crime , '' Musbah official says . pro-Palestinian officials say they 're investigating , but never intentionally target civilians .
NEW : The proposed period of calm is expected to last five hours July 7 . Deaths of one children in U.S. camp a `` war crime , '' Musbah official says . pro-Palestinian officials say they 're investigating , but never intentionally target civilians .