Aug. 20: Afghan election commission worker counts paper ballots at a polling station in Kandahar.
Aug. 20: Presidential candidate and current President Hamid Karzai casts his vote at a polling station in Kabul.
August 20: An Afghan woman stands at a polling station in Jalalabad the provincial capital of Nangarhar province east of Kabul, Afghanistan.
Aug. 20: An Afghan National Army soldier stands guard in Kabul, as Afghanistan voted under the shadow of Taliban threats of violence to choose its next president.
Aug. 19: A man and a donkey loaded with election supplies head to a rural polling station in Sighawar, in mountainous Panjshir Province.
August 19: An Afghan soldier gestures to drivers at a check post in city of Kandahar province south of Kabul, Afghanistan on Wednesday.
August 19: An Afghan security officer checks the engine of a car at a check post in city of Kandahar province south of Kabul, Afghanistan.
Aug. 19: An Afghan soldier runs towards bystanders at the scene of a gunbattle with suspected insurgents in Kabul.
President Hamid Karzai and top challenger Abdullah Abdullah positioned themselves Friday as the likely winner of Afghanistan's presidential election, one day after millions of Afghans braved Taliban threats and intimidation to cast ballots.
Partial preliminary results won't be made public before Tuesday, as Afghanistan and the dozens of countries with troops and aid organizations in the country wait to see who will lead the troubled nation for the next five years. The next president faces an agenda filled with crises: rising insurgent violence, rampant corruption and a huge narcotics trade.
Both sides said their candidate was ahead in the count. Officials with the country's Independent Election Commission said it was too early for any campaign to claim itself the winner. Counting at individual polling sites has been completed, but ballots are now being sent to Kabul, election officials said.
Abdullah's camp said it was investigating claims of fraud across southern provinces where Karzai would expect to do well.
"As far as my campaign is concerned, I am in the lead, and that's despite the rigging which has taken place in some parts of the country," Abdullah told The Associated Press. He claimed that government officials interfered with ballot boxes, and in some places blocked monitors from inspecting boxes or their contents.
Abdullah said there "is a likelihood" that neither he nor Karzai got more than 50 percent of the vote, a circumstance that would trigger a run-off. Though election officials previously said preliminary results would be announced Saturday, Daoud Ali Najafi, the chief electoral officer, said Friday that results won't be made public until Tuesday.
Karzai's campaign spokesman, Waheed Omar, said that the campaign believes "we are well ahead" in the vote count based on reports the campaign has received. Omar also said a second round would be "logistically, financially and also politically" problematic for the people of Afghanistan, though the election commission has said it is ready to hold a second round if needed.
"Our prediction is that the election will not go to the second round," Omar said. "Our initial information is that we will hopefully be able to win the elections in the first round."
A Times of London report Friday said election officials at a polling station near Kabul recorded 5,530 ballots in the first hour of voting Thursday, even though no voters were at the site when the Times' reporter arrived at 8 a.m.
Election workers said the area was pro-Karzai and was controlled by a lawmaker who said he had already voted for Karzai, even though his finger wasn't marked with indelible ink, a fraud prevention measure, the Times reported.
The International Republican Institute, a U.S.-based nonprofit organization that had about 30 election observers in Afghanistan, said the vote was at a "lower standard" than the 2004 and 2005 Afghan elections" but that "the process so far has been credible."
Richard S. Williamson, the IRI's delegation leader in Afghanistan and a former U.S. ambassador to the U.N., said the election "was defined by violence."
International officials have predicted that Afghanistan's second-ever direct presidential vote would be imperfect but expressed hope that Afghans would accept the outcome as legitimate — a key component of President Barack Obama's strategy for the war.
The country's chief electoral officer, Daoud Ali Najafi, said the commission had only started to receive partial results in Kabul on Friday morning.
"My advice is that all the candidates should be patient and wait until the results go through the proper channels and results are announced," Najafi said.
A U.S. Embassy spokeswoman, Fleur Cowan, said only the Independent Electoral Commission can announce official results.
"Anything else is speculation at this point," she said. "We will wait to hear from the IEC and electoral complaints commission."
Final official results weren't to be announced until early September.
As the counting continued, so did violence. A U.S. service member died Friday from wounds from an improvised explosive device in eastern Afghanistan, the NATO-led military alliance said. No other information was released. Two British troops in the south died on Thursday, officials announced.
Millions of Afghans defied threats to cast ballots, but turnout appeared weaker than the previous vote in 2004 because of violence, fear and disenchantment. At least 26 Afghans, including security forces, were killed in election-related violence. In much of the Taliban's southern strongholds, many people did not dare to vote, bolstering the hopes of Abdullah.
A top election official, Zekria Barakzai, told The Associated Press he estimated 40 percent to 50 percent of the country's 15 million registered voters cast ballots — far lower than the 70 percent who voted in the presidential election in 2004.
A low turnout and allegations of fraud could cast doubt over the legitimacy of the vote and raise fears that followers of defeated candidates might take to the streets.
Low voting in the ethnic Pashtun south would harm Karzai's re-election chances and boost the standing of Abdullah, who draws his strength from the Tajik minority. Turnout in the Tajik north appeared to be stronger, a good sign for Abdullah.
U.S. officials had hoped for a wide turnout as a symbolic rejection of the insurgency. The voting was seen partly as a test of the ability of U.S. forces to protect civilians — the new top military priority — and the willingness of voters to accept that help.