We don't recognize PYD as a terrorist organization: US

"The United States is to continue to support Democratic Union Party (PYD), known to be the Syrian affiliate of the Kurdistan Workers' Party (PKK)," said the State Department spokesman John Kirby.

“Even though we understand they have concerns about support to Kurdish fighters in Syria … they have been nothing but open and honest about their concerns with that.. We in turn have been open and forthright and honest about how we need to move forward as a coalition to go after this group [Daesh],” he said.

"Kurdish fighters have been some of the most successful in going after Daesh inside Syria. We have provided a measure of support, mostly through the air and that support will continue," he added.

"We've been managing this particular issue for quite some time. This is not a new concern. We don't, as you know, recognize the PYD as a terrorist organization," Kirby said.

Kirby, who also pointed out the partnership between the US and PYD is limited to the fight against Daesh, added that Turkey and the US may not agree on everything despite being NATO allies in the fight against Daesh.

Kirby's comments follow remarks by Turkish President Recep Tayyip Erdoğan, who voiced concerns about US support for YPG, the military wing of the PYD -- the Syrian branch of the PKK terror group.

"The PYD, controlled by the Qandil Mountain [where the PKK has established its headquarters since it retreated from Turkey] is supported and defended [by Western powers that] ignore the YPG's ethnic cleansing activities in the region, terrorist actions, [and] cooperation with the current [Bashar al-Assad] regime," Recep Tayyip Erdogan said Saturday at the World Tourism Forum in Istanbul.

Criticizing Washington's characterization of the PYD as a “reliable partner” in the fight against Daesh, Erdogan urged the US to show preference to its NATO ally in Turkey, rather than the PYD as a partner.

Reports about US-provided arms found in Turkey with PKK terrorists killed by Turkish forces, suspected to have been transferred to the terrorist group by the PYD, were brushed aside by Kirby who denied the claims, saying the US provided only ammunition and not weapons.

At the Pentagon, a spokesman said the Obama administration will support any moderate force fighting Daesh but added that the US has been talking to the Turkish government about “the best way to execute that fight” against Daesh.

"We're going to continue to coordinate -- have our conversations with the Turkish government, and -- in the most appropriate fashion, and, again, focus the coalition's efforts on defeating ISIL, which is where we think Turkey and other members of the coalition want to achieve the exact same goal we do,” Perter Cook said, using an alternative acronym for Daesh.