Turkish Prime Minister Recep Tayyip Erdogan (R) meets Khalid Mashaal (C), the Hamas chief in exile, and Gazas prime minister Ismail Haniyeh in Ankara on June 18, 2013. Senior leaders of the Palestinian Islamist movement Hamas met today in Ankara with Turkish Prime Minister Erdogan to discuss Erdogan's planned visit to the Gaza Strip as well as the situation in Syria, the source said on condition of anonymity.  AFP PHOTO/ PRIME MINISTER PRESS OFFICE/ YASIN BULBUL == RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "PRIME MINISTER PRESS OFFICE" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS ==        (Photo credit should read Yasin Bulbul/AFP/Getty Images)