US officials strongly criticized the Turkish government.
On Wednesday the Turkish Ambassador to the US Serdar Kiliç was summoned to the State Department, a senior State Department official told CNN.
Two men were also arrested by D.C.'s Metropolitan Police Department on the scene - Jalal Kheirabaoi of Fairfax, VA, and Ayten Necmi of Woodside, NY, according to police reports.
Just days after a brutal fight outside the Turkish embassy in Washington, DC, that left at least a dozen people injured, video footage has surfaced showing Turkish President Recep Tayyip Erdogan calmly watching the violence near his auto.
U.S. officials expressed outrage after what they described as a "brutal attack" Tuesday by Erdogan bodyguards on a small group of pro-Kurdish protesters who gathered on the United States capital's "Embassy Row" after Erdogan met with President Donald Trump at the White House.
He told "Morning Joe" that he believed the Turkish ambassador to the US should be thrown "the hell out" of the country because of the violence. "And this kind of thing can not go unresponded to diplomatically". He said police were examining video to identify those responsible.
The State Department issued a relatively strong statement Wednesday saying that it was "concerned by the violent incidents" involving Turkish security personnel and that the United States is "communicating our concern with the Turkish government in the strongest possible terms".
President Erdogan's bodyguards could hear it.
Twelve people, including a police officer were hurt during the melee.
Turkish Foreign Minister Mevlut Cavusoglu said the United States should replace its special envoy to the anti-ISIS coalition, Brett McGurk, because of his perceived support for Kurdish "militants" in northern Syria, Turkey's state news agency Anadolu reported Thursday.
Attacking the small group of protesters with their fists and feet, men in dark suits and others were recorded repeatedly kicking one woman as she lay curled on a sidewalk.
Turkish President Recep Tayyip Erdogan watched part of the Washington D.C. protests against him turn into a brawl.
The statement said a Turkish-American was "seriously injured" in self-defense. "In the same way, we should never allow those groups who want to change the ethnic or religious structures in the region to use terrorism as a pretext". "People have the right in our country to peacefully demonstrate and they were peacefully demonstrating".
Turkish supporters, however, claimed they were provoked by members of the Turkish Kurdish party YPG, which Erdogan's government considers a terrorist group for its links to the PKK.