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　　School textbooks and shoes are seen on the ground after a suicide attack in Khost province, east of Kabul, Afghanistan, Sunday, December 28, 2008. A suicide bomber tried to attack a meeting of tribal elders and blew himself up near an Afghan primary school on Sunday, killing 14 children and wounding 58 people, the US military said. 　　
　　An Afghan police officer wounded in a blast, is seen as he walks at the site of a suicide attack in Khost province, east of Kabul, Afghanistan, Sunday, December 28, 2008. A suicide bomber tried to attack a meeting of tribal elders and blew himself up near an Afghan primary school on Sunday, killing 14 children and wounding 58 people, the US military said. 　　
　　The wreckage of a vehicle which was used by a bomber is seen on the ground after a suicide attack in Khost province, east of Kabul, Afghanistan on Sunday, December 28, 2008. A suicide bomber tried to attack a meeting of tribal elders and blew himself up near an Afghan primary school on Sunday, killing 14 children and wounding 58 people, the US military said.
　　KABUL, Afghanistan – A single-file line of school children walked past a military checkpoint Sunday as a bomb-loaded truck veered toward them and exploded, ending the lives of 14 young Afghans in a heartbreaking flash captured by a US military security camera.
　　The video shows an SUV slowly weaving through sandbag barriers at a military checkpoint just as a line of school children, most wearing white caps, comes into view. They walk along a pathway between the street and a wall, several of them pausing for a few seconds in a group before moving forward again. The vehicle moves toward the security camera while the children walk in the opposite direction, nearly passing the SUV when the footage ends in a fiery blast.
　　Photos of the bombing's aftermath showed bloodied text books lying on the ground beside small pairs of shoes. Afghan officials said the kids were attending a final day of class for the year to find out whether they would move up to the next grade.
　　Dr. Abdul Rahman, a doctor at a hospital near the blast, said the children were aged 8 to 10.
　　The US military said the attack in the eastern province of Khost killed 16 people, including 14 children, an Afghan soldier and another person, likely a private security guard that Afghan officials reported killed. The US said 58 people were wounded.
　　In an angry condemnation of the attack, President Hamid Karzai said those that carried it out "cannot escape the revenge of Afghans and God's punishment."
　　The UN mission in Afghanistan and the NATO-led force also strongly condemned the attack.
　　The blast went off near the entrance to a police and army post, said Yacoub Khan, the deputy police chief of Khost. US troops are also stationed inside the outpost, but no troops were wounded or killed in the attack.
　　US Gen. David McKiernan, the top NATO commander in Afghanistan, said he believes the militant network run by warlord Siraj Haqqani was responsible for the attack.
　　"The brutality and disregard for human life by terrorists is sickening, as I continue to witness innocent men, women and children being killed and maimed in the pursuit of this pointless insurgency," McKiernan said in a statement.
　　Afghan officials offered a slightly lower death toll. Abdullah Fahim, spokesman for the Ministry of Health in Kabul, said eight people in total died and 51 were wounded. Khan said he believed that only five school children had died.
　　It wasn't possible to reconcile the differing death tolls, though the US military video seemed to support the likelihood of the higher toll.
　　Khan said the attack came at a time when Pashtun tribal elders from Mandozai district were meeting inside the compound to discuss security issues. It was not immediately clear how many, if any, of those tribal leaders were wounded or killed. Khan said it was possible they were the target but that there was no way for him to know for sure.
　　The attack came on the last day of school for the year. Students had gathered in the classrooms to receive end-of-year certificates and learn if they had passed on to the next grade, Asif Nang, spokesman for the Ministry of Education, said.
　　A UN spokesman said the UN mission in Afghanistan was "appalled" at the suicide attack.
　　"The deaths of young children who were receiving their end-of-year education certificates are particularly galling," said Dan McNorton.
　　The blast in Khost province came only hours after a late-night rocket attack in Kabul on Saturday killed three teenage sisters. McNorton said that attack "also reminds us of the true impact this conflict has on those who play no part in it."
　　Violence has spiked across Afghanistan the last two years, and the US plans to send between 20,000 and 30,000 additional troops to Afghanistan over the next six months to reinforce the 32,000 US forces already in the country.
　　More than 6,100 people have died in insurgency-related violence this year.
　　The year has also been the deadliest for NATO soldiers since the 2001 invasion to oust the Taliban.
　　In the south, a roadside bomb killed two Canadian soldiers and two Afghans working alongside them in a dangerous region of southern Afghanistan, Canada's military said Sunday.
　　In addition to those killed in Saturday's roadside bomb attack, four Canadian soldiers and one Afghan interpreter were wounded, the military said.
　　The two Afghans killed in the blast in the Panjwayi district of Kandahar province included an interpreter and a police officer.
　　NATO officials have said that Canadian troops have suffered more deaths per capita than any other foreign military in the country. More than 100 Canadians have been killed.
　　Elsewhere, coalition forces killed five militants and detained six during operations in Kabul and Paktika provinces on Saturday, the US-led coalition said Sunday.