Turkish Prime Minister Recep Tayyip Erdogan (R) meets Khalid Mashaal (L), the Hamas chief in exile, and Gaza’s prime minister Ismail Haniyeh(C) in Ankara, Turkey on June 18, 2013. Senior leaders Hamas met today in Ankara with 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. UPI/Palestinian PM Media