Turkish President Recep Tayyip Erdogan on Friday criticised the indictment in Washington of members of his security detail who were charged with assaulting protesters during an official White House visit in May.

A total of 19 people including Turkish security officials have been identified from video footage of the May 16 clashes with Kurdish protesters following a meeting between Erdogan and President Donald Trump.

Erdogan said in a televised address that the case was a "scandalous demonstration of how American justice works."