WASHINGTON – Three new people have been indicted by a grand jury for their role in a violent clash between Turkish security officials and protesters outside Turkey’s embassy in D.C. in May.

A total of 19 people, including 15 Turkish security officials, have been indicted for the May 16 incident. On Tuesday, the indictment added three new defendants — all Turkish security officials.

The indictments charge the defendants with attacking peaceful demonstrators who were protesting the visit of Turkish President Recep Tayyip Erdogan at the Turkish ambassador’s residence in Northwest D.C. Eleven people were injured, including a police officer, in the melee.

All 19 defendants were indicted on a charge of conspiracy to commit a crime of violence, with a bias crime enhancement. Many were indicted on additional charges.

Sixteen of the defendants had already been charged June 13.

Two of the defendants were arrested in June and face an initial court hearing on Sept. 7. The rest remain at large.

The Associated Press contributed to this report.