In pictures: Zanzibar elections

Tension was high in Sunday's poll, after fraudulent elections in 1995 and a crackdown by the governing Chama Cha Mapinduzi (CCM) on the opposition Civic United Front (CUF). Commonwealth observers said it was a "shambles" and the election should be repeated outright but only one third of constituancies will be re-run. On Monday protesting CUF supporters clashed with riot police.

A CUF supporter wears her allegiance on her forehead

Colour co-ordination is important for these CCM supporters

Queues started forming at five in the morning...

... but some polling stations did not open at all

CUF leader Seif Sharif Hamad called the electoral commission on polling day to complain

Riot police broke up demonstrations on Monday after limited annullments were announced...

and left no stone unturned to flush out CUF supporters