"We will continue to work with our partners at the United States State Department and United States Secret Service to identify and hold all subjects accountable for their involvement in the altercation".
"This isn't Turkey. This isn't a third-world country", McCain said on MSNBC. Almost a dozen people were injured.
"It would be useful if this person was replaced", Cavusoglu told broadcaster NTV after a visit by President Recep Tayyip Erdogan to Washington this week.
Speaking in Istanbul two days after meeting President Donald Trump in Washington, Erdogan criticized the USA decision to ally with "terror organizations" for the long-awaited operation to capture Raqqa, the de facto capital of the Islamic State group.
Erdogan said he warned Trump that Turkey would combat YPG if the group posed any security threat. A group of Republican lawmakers called the incident an "affront to the United States" and called for Turkey to apologize.More news: Trump intends to renegotiate NAFTA as early as August
Attacking with their fists and feet, men in dark suits and others are seen repeatedly kicking one woman as she lay curled on a sidewalk. He later exits the vehicle and peers toward the chaos.
But the Turkish Embassy said the demonstrators were aggressively provoking Turkish-Americans who had gathered to greet the president, and they in turn responded in self-defence.
Brett McGurk is "definitely giving support" to Turkey's outlawed Kurdistan Workers Party (PKK) and the Kurdish People's Protection Units (YPG) in Syria, Turkish Foreign Minister Mevlut Cavusoglu said on May 18.
Citing a cross-border offensive Turkey launched against IS and the YPG in Syria previous year, Erdogan said "we won't hesitate to launch similar operations if we see the need".
To Turkey's dismay, President Donald Trump has chose to arm and partner Syrian Kurdish militants in the impending fight to retake the key city of Raqqa.More news: Boston Celtics get top pick in NBA draft thanks to Nets trade
Cavusoglu said Trump's administration seems more understanding about Turkey's security concerns.
Erdogan also said that the United States had made up its mind on Raqa, which meant Turkey could not join the operation "under the current circumstances", referring to the YPG's involvement.
And Erdogan, speaking in Istanbul two days after meeting Trump, said he was putting Washington on notice that his forces won't hesitate to attack US -backed Kurds if they threaten Turkey.
House Foreign Affairs Committee Chairman Ed Royce also sent a letter to Attorney General Jeff Sessions and Secretary of State Rex Tillerson urging them to take action over the clashes.
The PKK is listed by both Washington and Ankara as a terrorist organization.More news: Trump open to engagement with North Korea under right conditions
The U.S. respects Turkish concerns about its "by, with, and through" approach to the Syrian Democratic Forces led by the YPG, and will continue consulting with Ankara as the focus on combating IS continues, Nauert said.
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