group of police officers standing at a crosswalk on a city street at night

group of police officers standing at a crosswalk on a city street at night. The officers are wearing dark uniforms with reflective vests. Some are holding bicycles. Behind them, a crowd of people is gathered in the street, holding flags and signs. Some of the people in the crowd appear to be chanting or shouting. The buildings in the background are tall and have brick facades. The traffic light is red. An ambulance is seen parked in the background. The atmosphere seems tense, possibly indicating a protest or demonstration taking place.