TEHRAN, Sep. 22 (Press Shia Agency) -Turkish president Erdoğan warned Washington that armng YPG Kurdish forces in Syria could end up hurting Washington and its allies.

Turkish President Tayyip Erdoğan said Turkey will deploy troops in Syria’s northern Idlib region as part of a so-called de-escalation agreement brokered by Russia last month.

The “de-escalation” zones, agreed by Turkey, Russia and Iran, would be further discussed in talks with Russian President Vladimir Putin during his trip to Ankara next week, Erdogan said in an interview with Reuters while he was in New York for the annual United Nations General Assembly, Hurriyet Daily reported.

“The de-escalation zone agreement was a promising idea … under which Russians are maintaining security outside Idlib and Turkey will maintain the security inside Idlib region,” Erdoğan said.

“The task is not easy … With Putin we will discuss additional steps needed to be taken in order to eradicate terrorists once and for all to restore peace.”

Iraqi Kurdish authorities have defied growing international pressure to call off a referendum on independence. Iraq’s neighbors fear will fuel unrest among their own Kurdish populations and Western allies said it could detract from the fight against ISIL.

Erdoğan said Turkey was considering counter-measures, including imposing sanctions, against Kurdish northern Iraq over the planned referendum.

Turkey has brought forward a cabinet meeting and national security council session to Sept. 22 over the referendum, Erdoğan said. He said that parliament would also convene for an extraordinary meeting on Sept.23.

“Without any further delay we are going to discuss what kind of sanctions should be imposed and when the sanctions will be imposed,” he said without elaborating on what they might be.

Turkish troops are also carrying out military exercises near the border and Erdoğan said on Sept. 22 the resolution on troop deployment abroad will be submitted to parliament for vote.

Erdoğan also said the United States should extradite US-based cleric Fethullah Gülen, widely believed of orchestrating a failed coup in Turkey.

Erdoğan also warned Washington that a decision to arm YPG Kurdish forces fighting ISIL in Syria could end up hurting Washington and its allies. Turkey views the YPG as the Syrian extension of the outlawed Kurdistan Workers’ Party (PKK).

“Turkey and the United States are strategic partners … Washington should not harbor terrorists and they should be extradited to Turkey … Also arming and supporting YPG can harm the United States and its friends,” Erdoğan said.

He said in the interview that he hoped political relations with Germany could be improved, praising German Chancellor Angela Merkel for refraining from criticizing Turkey and its policies.

“I am quite hopeful the relations will improve … we have no problem with German public. We have problem with some officials’ wrong attitude against Turkey,” he said.

Merkel, who has been at odds with Erdoğan on many fronts over the last year, has said that “the fact is clear that Turkey should not become a member of the EU.”

Merkel, arguably the most influential politician in the European Union, has said she will speak to other EU leaders to end Turkey’s EU accession talks.

“Things never went well for the last 54 years regarding Turkey’s EU membership … we have been lingering at the doorstep of the EU and things have got worse. They have never kept their promises,” Erdoğan said.

Erdoğan said Turkey’s ties with NATO were strong despite buying S-400 missile system from Russia.