Turkey has summoned the U.S. Ambassador to Ankara to deliver a "written and verbal protest" over the treatment of Turkish security personnel on President Recep Tayyip Erdoğan's recent visit to Washington.

You read that right. After Turkish bodyguards beat peaceful protesters outside the Turkish ambassador's residence in Washington while Erdoğan watched, Turkey has seen fit to lodge a protest with the U.S.

What the U.S. is saying: Rex Tillerson told Fox News Sunday, "We called the Turkish ambassador into State Department to say this is unacceptable," but said he'd wait for the results of an investigation before taking further action.