Egyptian army soldiers stand guard next to debris and belongings of passengers of the A321 Russian airliner that crashed the previous day in Wadi al-Zolomat, a mountainous area in Egypt's Sinai Peninsula, on November 1, 2015. International investigators began probing why the Russian airliner carrying 224 people crashed in the Sinai Peninsula, killing everyone on board, as rescue workers widened their search for missing victims. AFP PHOTO / KHALED DESOUKI        (Photo credit should read KHALED DESOUKI/AFP/Getty Images)