Fights broke out outside the Turkish ambassador's residence in Washington on the day Turkey's president met with President Donald Trump at the White House.
Nine people were injured and two people were arrested, NBC Washington reported.
The injuries resulted from a scuffle on the 1600 block of 23rd Street NW, about a half-mile from the Dupont Circle area.
Some streets in the area were closed down, NBC Washington reported, citing authorities and noting that Tuesday's protest happened on the day Turkish President Recep Tayyip Erdogan had met with President Donald Trump at the White House.
Two people were taken to the hospital suffering from serious injuries, a fire official told NBC Washington.
The clashes were said to have been between Erdogan supporters and critics of the Turkish president. Some media reports, citing eyewitnesses, claimed that Erdogan's protection officers were drawn into the brawl. This could not be independently verified by CNBC and the Metropolitan Police Department didn't elaborate on the circumstances when contacted by NBC Washington.