Turkey's Foreign Minister Mevlut Cavusoglu is expected in France on Sunday as tensions heated up over rallies abroad to help Ankara gain backing for a key vote, authorities said.

His visit to the eastern French city of Metz was "confirmed", a local official told AFP on Saturday.

Cavusoglu was to travel to the Netherlands for a rally to gather support for a referendum on boosting the powers Turkish President Recep Tayyip Erdogan, but officials there barred his plane from landing