Turkish President Recep Tayyip Erdogan will host his Russian and Iranian counterparts for a summit on Syria in Ankara on September 16, the presidential spokesman said.

Axar.az reports citing Alarabia that the leaders will discuss Idlib, as well as the establishment of a constitution commission and how the political process should continue, Kalin said.“The president will host a three-way summit with the participation of Russia and Iran in Ankara,” spokesman Ibrahim Kalin said late Wednesday.

Turkey is keen to prevent a large-scale offensive in Idlib - home to three million people - where Turkey has 12 observation posts.

Kalin said Erdogan would speak on the phone with Putin in the coming days, adding that preparations were being made for another call with US President Donald Trump.