Putin congratulates Turkey's Erdogan for referendum win - sources

Turkish President Tayyip Erdogan addresses his supporters at the Presidential Palace in Ankara, Turkey, April 17, 2017. REUTERS/Umit Bektas

ANKARA (Reuters) - Russian President Vladimir Putin has called his Turkish counterpart Tayyip Erdogan and congratulated him for winning the referendum, Turkish presidential sources said on Tuesday.

The two leaders discussed ramping up efforts to normalise ties and highlighted the importance of working together to strengthen the ceasefire in Syria.

(Reporting by Tulay Karadeniz; Writing by Humeyra Pamuk; Editing by Andrew Roche)