ANKARA, Nov. 24 (Xinhua) -- U.S. President Donald Trump on Friday held a phone conversation with his Turkish counterpart Recep Tayyip Erdogan, pledging that Washington will not provide weapons to the People's Protection Units (YPG), Turkish Foreign Minister Mevlut Cavusoglu said.

Cavusoglu told reporters in Ankara that the two leaders discussed over the phone the Sochi summit, Syria crisis and bilateral ties.

Trump gave his assurance after Erdogan reaffirmed Ankara's concerns over the U.S. continued delivery of heavy weapons and armoured vehicles to the YPG, the minister said.

"Lately, we have seen that some armoured vehicles were given to them," he said.

Turkey considers the Democratic Union Party (PYD) and its armed wing the YPG the Syrian affiliates of the Kurdistan Workers' Party (PKK), a terrorist organization listed by Turkey, the U.S. and the EU, while the U.S. supports the PYD as its ally on the ground in combating the Islamic State (IS) in Syria.

The Turkish minister welcomed Trump's assurance, saying Turkey wants to see the decision being implemented.

The two presidents also exchanged views on the recent Sochi summit with the participation of the presidents of Russia, Iran and Turkey, said Cavusoglu, voicing Ankara's opposition to the YPG's participation in any peace conference.

Erdogan also called for the U.S. to completely resolve the visa issue against Turkey, Cavusoglu added.

President Erdogan tweeted and posted a meeting photograph in his office following the phone call.

"I had a fruitful phone conversation with U.S. President Donald Trump today," he said.

Mevlut Cavusoglu, Turkish National Intelligence Organization Chief Hakan Fidan and Presidential aide Ibrahim Kalin were also seen during the phone call in the photo.