Ethiopia's 3rd multiparty election on 15 May 2005 was highly disputed, with some opposition groups claiming fraud. Though the Carter Center approved the pre-election conditions, it expressed its dissatisfaction with post-election events. European Union election observers cited state support for the EPRDF campaign, as well as irregularities in ballot counting and results publishing. The opposition parties gained more than 200 parliamentary seats, compared with just 12 in the 2000 elections. While most of the opposition representatives joined the parliament, some leaders of the CUD party who refused to take up their parliamentary seats were accused of inciting the post-election violence and were imprisoned. Amnesty International considered them "prisoners of conscience" and they were subsequently released.