US detained, released 2 Turkish security officers involved in massive fight

The officers have diplomatic immunity.

— -- The U.S. detained and released two members of the Turkish president's delegation after they were involved in an attack on peaceful protesters outside the Turkish embassy Tuesday.

The Turkish security officials were briefly detained at the site of the protest by U.S. law enforcement for their role in the altercation. But because of their diplomatic immunity, they were released on the scene.

"Customary international law affords heads of state and members of their entourage with inviolability from arrest and detention," a State Department official told ABC News. "The United States recognizes this inviolability, which provides reciprocal protection for the United States abroad."

Still, the State Department said it was expressing "concern" to Turkey over the incident "in the strongest possible terms." The U.S. response included summoning the Turkish ambassador to the State Department Wednesday, where he met with Under Secretary of State Tom Shannon, the acting Deputy Secretary.

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. It is unclear if they worked for the embassy or were members of the counter-protest.

"Obviously he was in charge of the group of thugs that violated American law and beat up people," McCain told ABC News. "It's disgraceful and shouldn't be happening in the United States of America."

I agree with @SenJohnMcCain.Unacceptable. They were assaulting these people on US soil.Turkish Ambassador should be kicked out of country. https://t.co/PtCS1qG51K

— Claire McCaskill (@clairecmc) May 18, 2017

A State Department official declined to comment on the idea of expelling the ambassador.

"Your staff’s blatant violation of these rights on American soil is an affront to those freedoms, and reflects poorly on your government," they wrote.

In their Oval Office meetings Tuesday, Trump did not mention Erdogan's increasingly tight grip on power in Turkey or allegations of irregular elections under his leadership.

I agree with @SenJohnMcCain.Unacceptable. They were assaulting these people on US soil.Turkish Ambassador should be kicked out of country. https://t.co/PtCS1qG51K

A State Department official declined to comment on the idea of expelling the ambassador.

"Your staff’s blatant violation of these rights on American soil is an affront to those freedoms, and reflects poorly on your government," they wrote.

In their Oval Office meetings Tuesday, Trump did not mention Erdogan's increasingly tight grip on power in Turkey or allegations of irregular elections under his leadership.