Predictions of fraud are ratcheting up tension ahead of a presidential poll in Ukraine on Sunday. Rallies were held in the capital Kiev to mark the last day of what has been a bitterly contested campaign.Allegations of cheating have been directed at Prime Minister Viktor Yanukovich who is vying for the top job. Demonstrations have been held against his candidacy. The premier has retaliated by saying the protests, organised by the opposition, violate Ukrainian law. Yanukovich has also been accused by his political challenger of trying to twice kill him. Viktor Yushenko has also claimed he expects multiple voting fraud and for authorities to intimidate voters at the ballot box. He also said that after the alleged assassination attempt on his life, he feared for his family and has moved them to secret locations. Dozens of Kiev students have demonstrated in the capital on the last day of campaigning. They support West-leaning Yushenko and were protesting at alleged harassment of their members by police. Yushenko is seen as the candidate who would move his country closer to the West, whilst Yanukovich would be inclined to lean towards Russia. The rivals are neck and neck in the polls.