In Zurich, Switzerland, Halloween celebrations escalated into riots and clashes with the police. Protesters set fire to cars, garbage cans and electric scooters, set up roadblocks and threw bottles at the police. In response, the police used water cannons and tear gas.

In Zurich, Switzerland, Halloween celebrations escalated into riots and clashes with the police. Protesters set fire to cars, garbage cans and electric scooters, set up roadblocks and threw bottles at the police. In response, the police used water cannons and tear gas.