Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Zimbabwe Police Use Tear Gas to Break Up Opposition Rally Columbus Mavhunga HARARE - Police in Zimbabwe used tear gas and water cannons Wednesday to break up an opposition rally of about 200 people in the capital, Harare. Supporters of the Movement for Democratic Change said those who resisted the tear gas were assaulted. .