At least three officers from Police Scotland have reportedly been assaulted after having paint sprayed in their faces.
The force also confirmed that two people had been arrested over the disorder.
Sky News correspondent James Matthews shared a picture of a line of police officers facing off the crowd.
He tweeted: "Police Scotland: 3 officers assaulted, sprayed on the face with paint. 2 arrests so far @SkyNews #COP26."
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