President Erdoğan talked with his Russian counterpart Vladimir Putin over the phone Tuesday on the trilateral summit on Syria between Turkey, Russia and Iran scheduled for April 4 in Ankara.

The two leaders also confirmed that both countries are determined to develop bilateral relations even further in every field.

Taking place in Ankara with the participation of both leaders, as well as Iranian leader Hassan Rouhani, the summit will discuss ongoing de-escalation efforts in Syria.

During the phone call, Erdoğan also gave his condolences to Putin for the fire that broke out in a Russian mall which caused 64 people to lose their lives, including 41 children.

The fire in the city of Kemerovo started on the mall's fourth and top floors on Sunday and then consumed an area of about 1,600 square meters.

Three days of mourning in Kemerovo started on Tuesday.