June 15 (UPI) -- Law enforcement officials arrested two men linked to last month's skirmish outside the Turkish ambassador's residence in Washington, D.C., the U.S. Marshals Fugitive Task Force said.
The two men arrested Wednesday are Turkish nationals. Sinan Narin, of Virginia, was charged with felony and misdemeanor assault, and Eyup Yildirim, of New Jersey, was charged with two felony counts and one misdemeanor assault count.
A total of four people have been arrested since the violent incident May 16. Video of the melee appears to show Turkish President Recep Tayyip Erdogan's bodyguards punching and kicking Armenian and Kurdish protesters who oppose the president.
Erdogan was in the United States at the time for a bilateral meeting with U.S. President Donald Trump.
The incident has been under investigation by the Washington police, the State Department and the Secret Service.
"We witnessed what appeared to be a brutal attack on peaceful protesters," Peter Newsham, chief of the D.C. Metropolitan Police Department, said the day after the attack.
Also on Wednesday, U.S. officials told The Washington Post that twelve members of Erdogan's security force were expected to face charges on Thursday.
Although Washington police have arrest warrants for the 12 Turkish bodyguards, the suspects have by now all returned to Turkey.
Two protesters also have been charged. One was charged with aggravated assault and the other was charged with assaulting an officer.
This isn't the first time Erdogan's bodyguards mixed it up with protesters.
During a speech Erdogan gave at the Brookings Institute on March 31, 2016, several D.C. journalists said they witnessed the Turkish president's bodyguards assault protesters.
"Never seen anything like this: a female protester just tackled. DC cops are in the street trying to keep Turkish guards from hurting folks," tweeted Yochi Dreazen, the foreign editor at Vox.