Zimbabweans check preliminary results of the March 29 elections at a polling station in the suburb of Epworth near the capital Harare, March 31, 2008, as they await the official announcement of results. Riot police patrols appeared on the streets of Zimbabwe's capital on Sunday after a long delay to election results fuelled suspicions that President Robert Mugabe may try to cling to power by rigging the vote. REUTERS/Mike Hutchings (ZIMBABWE)