Iranian President Mahmoud Ahmadinejad (L) smiles during his meeting with Turkish President Abdullah Gul in Istanbul on November 8, 2009. Ahmadinejad visited Istanbul for the Economic and Commercial Cooperation (COMCEC) meeting of the Organization of the Islamic Conference (OIC). Sudanese President Omar al-Beshir, charged with war crimes in Darfur, will not attend an Organisation of the Islamic Conference summit in Istanbul, the Anatolia news agency reported.