Afghans are voting to choose their president in what is the country's first mass democratic poll. The favourite is the interim President, Hamid Karzai, who has led the country since the fall of the hard-line Islamic Taleban nearly three years ago. However, a problem with the indelible ink used to mark voters' fingers has led to a suspension of voting in some Kabul polling stations. Voters found they could wash off the ink, leading to fears of fraud.