Afghan voters are flocking to the polls to choose a new president amid heavy security. President Hamid Karzai was among the first to vote Saturday morning. After nearly 12 years in office, he is banned by the constitution for running for office again.
Afghanistan Chooses a New Leader

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Afghan President Hamid Karzai shows his ballot paper to the media before he casts his vote at Amani high school, near presidential palace in Kabul, April 5, 2014.

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Afghan men line up before casting their votes in a polling station in Herat.

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A policeman stands guard outside a polling station in Kabul as Afghans queue to vote outside before it opens.

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An Afghan policeman searches men before they enter a polling station in Adraskan district, Herat province.