street scene in what appears to be a European city on an overcast day

street scene in what appears to be a European city on an overcast day. In the foreground, people walk along a tiled sidewalk. A red and white tram passes behind them. Police vehicles, including vans with flashing blue lights, drive through the area. In the background, a crowd of people is gathered in front of a large building adorned with flags. Some people hold a banner. Bare trees stand scattered throughout the scene. The overall impression is of an urban environment with some sort of gathering or demonstration taking place.