Turkey referendum: Dutch expel Erdogan's minister amid protests

Mr Erdogan has lashed out at Germany and the Netherlands, denouncing the Dutch government as "Nazi remnants and fascists", while accusing Germany of "Nazi practices".

German Chancellor Angela Merkel has condemned the Nazi jibe as "unacceptable", while Mr Rutte dismissed it as a "crazy remark".

But Mr Erdogan escalated the rhetoric after the Netherlands banned his foreign minister Mevlut Cavusoglu from entering the country by plane by threatening to block Dutch flights.

He said: "Ban our foreign minister from flying however much you like, but from now on, let's see how your flights will land in Turkey."

Mr Cavusoglu also warned Turkey would impose heavy sanctions if his visit was blocked.

Ms Kaya's arrival, by road, was seen as a further provocation by Turkey on the part of the Dutch - although Mr Rutte says his government remains "in favour" of speaking with Mr Erdogan and his colleagues to find a resolution.