President Donald Trump told his Turkish counterpart that the United States will stop supplying arms to Syrian Kurdish fighters, according to officials in Turkey.

The Turkish government considers the group, known as the YPG, terrorists but the US has been openly arming them in the fight against Islamic State of Iraq and the Levant (Isil).

Mr Trump reportedly said, in a call with President Recep Erdogan, that the US would no longer do so.

Mevlut Cavusoglu, the Turkish Foreign Minister who was in Mr Erdogan's office during the call, told a press conference in Ankara: "Mr Trump clearly stated that he had given clear instructions and that the YPG won't be given arms, and that this nonsense should have ended a long time ago."

There was no immediate comment from the White House, the State Department or the Pentagon.

But several US officials involved with Syria policy said they were not yet aware of an intention to end US assistance to the Kurds.