KABUL, Afghanistan (AP) — The Latest on Afghanistan's national elections (all times local):

10:15 a.m.

A hospital in the southern city of Kandahar says that it is treating at least 15 wounded after a bomb attack on a local mosque where a polling station is located.

The doctor with the Southern Kandahar Hospital said the wounded included one police, several election officials, and Afghans who came to cast their ballots in the national elections on Saturday.

The doctor spoke on condition of anonymity because he was not authorized to speak with the media.

He added that three of the wounded are in critical condition.

Threats of violence from Taliban insurgents have rattled Afghanistan as it holds presidential elections, weeks after the U.S.-led peace process collapsed.

Associated Press writer Rahim Faiez reported from Kabul, Afghanistan.

7:05 a.m.

Afghans head to the polls to elect a new president amid high security as the Taliban vow to disrupt elections, warning citizens to stay home or risk being hurt.

The leading contenders are incumbent President Ashraf Ghani and his partner in the 5-year-old unity government, Abdullah Abdullah, who already alleges power abuse by his opponent.

Fear and frustration at the relentless corruption that has characterized successive governments rank high among Afghan concerns.

Tens of thousands of police, intelligence officials and Afghan National Army personnel have been deployed throughout the country to protect nearly 5,000 election centers.

In Kabul, traffic is light with police and army scattered throughout the city, stopping cars and looking for anything out of the ordinary.

The Taliban say they will take particular aim at Afghanistan's cities.