Police used teargas pepper spray, rubber bullets and LRAD 'sonic cannon' against University of Pittsburgh students during the Pittsburgh G20 Summit.
Eye witness account: "I was at the protest on Friday night and it was nothing but peaceful, until hundreds of riot-gear equipped cops started to push everyone around. Tear gassing students, people driving by in cars, shooting rubber bullets (hitting people in the face). Not one violent act was started by the protesters, everyone was literally told to leave for no reason. Then the cops started arresting Pitt students in their DORMS! 40+ people were arrested."