Utku Reyhan, the general secretary of nationalist Patriotic Party that organised the protest, criticised the US missile strike against Shayrat air base.
"There is no solution from America, all that comes from America is chaos and blood," he said. "We should focus on solving the Syrian issue with the Syrian administration and our other neighbors Iraq and Iran."
He called for the continuation of the peace talks in Kazakhstan, which were organized by Russia and Turkey. Protesters chanted "Murderer US, get out of Syria" and held banners that read "Murderer US, get out of the Middle East.