The demonstration occurred on the European side of Istanbul today, as Biden was on his way to a meeting with Turkish President Recep Tayyip Erdogan on the Asian side of the city.
Biden didn't see the protest, which was organised by the Youth Association of Turkey, the same group that roughed up three US Navy sailors while chanting "Yankee, go home!" a week ago in Istanbul.
The protesters threw red paint at the sailors and briefly succeeded in putting white sacks over their heads.