He said: "The police caused it (the riot). They turned up in large numbers and it attracted a crowd. Then they charged into them."
A 22-year-old, who did not want to be named, said he was hit with a baton despite not being involved in the protest.
"I saw them (police) hitting people who were definitely not involved in the violence," he said. "They were doing random charges and cracking people indiscriminately."