Bomb kills 3 Vietnamese tourists, guide near Egypt pyramids (3) Security forces clear the scene where three Vietnamese tourists and an Egyptian tour guide were killed when a roadside bomb hit their bus as it travelled close to the Giza pyramids outside Cairo. The homemade device exploded at 6:15 pm (1645 GMT). IMAGES AND SOUNDBITE(COMPLETES VID1282622_EN / VID1282646_EN)