An opposition supporter pushes a tractor wheel at a barricade near the Civic United Front (CUF) headquarters on a narrow street in Zanzibar's Stone Town November 2, 2005. The re-elected president of Zanzibar, Amani Abeid Karume, urged his opponents on Wednesday to accept his narrow victory in disputed polls and also take the blame for what he called isolated ballot unrest on the troubled Tanzanian archipelago. REUTERS/Radu Sigheti