Saudi's Grand Mufti Sheikh Abdul Aziz al-Sheikh (C) leads prayer at the funeral on February 6, 2008, in Riyadh, of Saudi security attache to Chad Abdulrahman al-Zahrani's wife and daughter, who were killed during a rebel assault in the capital Ndjamena. Saudi Arabia closed its embassy in Ndjamena and evacuated its staff following the killings which occured when apparently a stray bomb hit the ambassador's residence on February 2. AFP PHOTO / HASSAN AMMAR (Photo credit should read HASSAN AMMAR/AFP/Getty Images)