It could not immediately be determined whether the two men arrested Wednesday sided with Erdogan or the protesters. "Any further steps will be responsive and proportional to the charges", State said. Yilidrim also faces a charge of felony assault with significant bodily injury.
One suspect, Sinan Narin, of Virginia, was being processed in the District on Wednesday. Eyup Yildirim was charged with two felonies and a misdemeanor, also for assault. Video footage showed Turkish President Recep Tayyip Erdogan standing nearby watching the violence.
The U.S. official, who was not authorized to speak publicly to the matter and demanded anonymity, said DC police had identified 34 of 42 people who were involved in the fight, and are seeking their arrests. A video posted online has shown men in dark suits chasing anti-government protesters and punching and kicking them as police intervened.
"The Department would like to thank the Department of Justice and the investigative agencies for their diligence", the State Department said in a statement. "The State Department has raised its concerns about these events at the highest levels and a thorough investigation that will allow us to hold the responsible individuals accountable is of the utmost importance to us".
Last month, the DC Fire and EMS Department tweeted that nine people were hospitalized after approximately two dozen protesters turned out in front of the ambassador's residence, shortly after Turkish President Recep Tayyip Erdogan met with President Donald Trump.
On June 6 United States lawmakers passed a resolution which strongly condemned Turkey for the incident, and called for criminal charges against those responsible.
Although the conversations between Turkish officials can't be heard in the footage, sound editor Salih Ferad conducted an analysis of the tape for the Daily Caller.
Numerous security officers involved are unlikely to ever be arrested or charged with any crimes, being that they enjoyed diplomatic immunity as part of Erdogan's retinue and were seemingly acting on his direct orders.