crowd of people marching in what appears to be a protest or demonstration in a city

crowd of people marching in what appears to be a protest or demonstration in a city. Many participants are holding or draped in Iranian flags, some with a lion emblem. There is also a British flag visible. The protestors are moving along a street with buildings on either side. The buildings are multi-story and have a similar architectural style, featuring multiple windows. People are dressed in casual winter clothing, suggesting a cool weather environment. The scene seems to be taking place during the day. Some people are holding signs, but the text is not clear. The atmosphere appears to be active and engaged.