Nine people were hospitalized after the encounter.
And while State also confirmed that two members of the Turkish president's security team were detained after the attacks, they were soon released on diplomatic immunity grounds. Erdogan's guards - and a group of supporters who joined the melee - should be charged with crimes.
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.
"Violence is never an appropriate response to free speech, and we support the rights of people everywhere to free expression and peaceful protest", said the statement, clearly stating that the demonstration in front of Kılıç's residence was legal, peaceful and protected.
A brawl erupted outside the Turkish ambassador's residence in Washington D.C. on Tuesday as Erdogan was visiting the embassy. John McCain sent a letter to Erdogan on Thursday that describes the "violent response of your security detail" as a "blatant violation" of constitutional freedoms.
"We weren't doing anything wrong", said pro-Erdogan demonstrator Mustafa Dikilitas.
President Donald Trump, accompanied byTurkish President Recep Tayyip Erdogan, speaks in the Roosevelt Room of the White House in Washington Tuesday, May 16, 2017.More news: Change to European Union treaties 'not taboo' - Macron
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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. "He sent his goons to DC to rough up Americans and suppress the free speech rights of US citizens, and all the State Department can muster is a generic expression of opposition to violence".
Nauert said in her statement that the United States respects Turkey's concerns about its approach, and will continue regular consultations on the issue.
Republican Senators Marco Rubio (Florida) and Ted Cruz (Texas) called on the Turkish government to immediately apologize for the violence.
The PKK is considered a terror group by the USA and Turkey's Western allies.
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.
The YPG is the Syrian branch of the Turkish Kurdish Workers Party, the PKK, a Marxist group that has been trying since 1984 to carve out a separatist state from Turkey.