In pictures: Cairo under guard as Egyptian turmoil continues Egyptian military and policemen carry coffins covered with national flags of bodies of off-duty policemen who were killed near the border town of Rafah, North Sinai, upon their arrival at Almaza military airport, Cairo, Egypt, Monday, Aug. 19, 2013. Islamic militants on Monday ambushed two mini-buses carrying off-duty policemen in the northern region of Egypt's Sinai Peninsula, killing more than two dozen of them execution-style in a brazen daylight attack that deepens the turmoil roiling the country and underscores the volatility of the strategic region. Published Monday, Aug. 19, 2013 06:46PM EDT Last updated Monday, Aug. 19, 2013 06:51PM EDT