Turkish President Recep Tayyip Erdogan watched his security detail attack protesters outside Turkey’s embassy to the United States on Tuesday.

The video, published by the U.S.-backed Voice of America’s Turkish Service, shows Erdogan’s vehicle parked outside of the embassy as the protest unfolded. It provides a clear but limited view of at least two burly, jacketed men beating protesters. As police sirens approach, Erdogan gets out the vehicle, buttons his suit jacket and walks into the Turkish embassy. The incident has outraged some American leaders.