Turkey's President Tayyip Erdogan (L) greets students and parents during a ceremony to mark the start of the new school year at Ahmet Sani Gezici Girls' Imam Hatip School in Istanbul, Turkey

Students takes pictures with their mobile phones as Turkey's President Tayyip Erdogan (not pictured) makes a speech during a ceremony to mark the start of the new school year at Ahmet Sani Gezici Girls' Imam Hatip School in Istanbul

Students takes pictures with their mobile phones as Turkey's President Tayyip Erdogan (not pictured) makes a speech during a ceremony to mark the start of the new school year at Ahmet Sani Gezici Girls' Imam Hatip School in Istanbul

Students takes pictures with their mobile phones as Turkey's President Tayyip Erdogan (not pictured) makes a speech during a ceremony to mark the start of the new school year at Ahmet Sani Gezici Girls' Imam Hatip School in Istanbul