ANKARA - Turkish President and the ruling Justice and Development (AK) Party chair Recep Tayyip Erdogan to meet his party's provincial heads in Ankara.
ANKARA - Kemal Kilicdaroglu, head of main opposition Republican People's Party (CHP), to preside his party's group meeting.
ANKARA - Statistical authority TurkStat to announce animal production statistics for June and the producer price index of agricultural products for August.
WASHINGTON – House Committee on Foreign Affairs to hold hearing on Syria policy; top State Department officials to testify.
BERLIN - German Foreign Minister Heiko Maas to meet Russian counterpart Sergey Lavrov for talks on bilateral relations, Syria and other international issues.
ISLAMABAD - Turkish Foreign Minister Mevlut Cavusoglu in Islamabad to meet Pakistani President Arif Alvi, Prime Minister Imran Khan and Foreign Minister Shah Mehmood Qureshi and army chief Gen. Qamar Javed Bajwa.
ISTANBUL, Turkey - Turkish presidential spokesman Ibrahim Kalin to hold a preparatory meeting for a quadripartite summit on Syria as French, German and Russian representatives to attend the meeting in Istanbul.
GENEVA, Switzerland - UN special envoy to Syria Staffan de Mistura to meet representatives of Egypt, France, Germany, Jordan, Saudi Arabia, the U.K. and the U.S. to discuss constitutional committee for Syria.
ALEPPO/IDLIB/HOMS - Desk to monitor Syrian civil war.
SANAA - Following developments in Yemen's civil war.