KABUL, Afghanistan - A suicide car bomber struck early Monday at the gates of Jalalabad airport in eastern Afghanistan, officials said, killing nine people in an attack insurgents said was revenge for U.S. troops burning Korans.the blast wounded four U.S. troops at the airport, which also serves as a coalition base, and is just the latest attack targeting Americans after the Koran burning was reported.
The explosion comes after six days of deadly protests in Afghanistan over the disposal of Korans and other Islamic texts in a burn pit last week at a U.S. military base north of the capital.
American officials have called the incident a mistake and issued a series of apologies. Afghan President Hamid Karzai has urged calm, saying that Afghans should not let the insurgents capitalize on their indignation to spark violence.
Monday's attack appeared to be a sign that the Taliban are seizing the opportunity to do just that.
The bomber drove up to the gates of the airport which serves both civilian and international military aircraft shortly after dawn and detonated his explosives in a "very strong" blast, said Nangarhar provincial police spokesman Hazrad Mohammad.
Among the dead were six civilians, two airport guards and one soldier, Mohammad said. Another six people were wounded, he said.
An AP photographer saw at least four destroyed cars at the gates of the airport.
NATO forces spokesman Capt. Justin Brockhoff said that no international forces were killed in the early morning attack and that the installation was not breached by the blast.
The Taliban claimed responsibility for the attack, saying a suicide car bomber had driven up to the airport gate and detonated his explosives as international forces were changing from night to morning guard duty.
A local Taliban subcommander, who gave his name as Abu Sajad, told CBS News' Sami Yousafzai in a telephone call Monday morning that an "ordinary Afghan" approached the militant group "willing to take revenge, and within 24 hours he took revenge for the Koran."
According to Sajad, the suicide bomber "was not a student of a madrasa (Islamic religious school) or a Talib 24 hours ago."
The militant subcommander, whose claims could not be independently verified, told CBS News that "a number of Afghans working inside very sensitive Afghan and U.S. offices (have been) approaching the Taliban" since the Koran burning was revealed at Bagram air base.
More than 30 people have been killed in protests and related attacks since the incident came to light this past Tuesday, including four U.S. soldiers.
On Sunday, demonstrators hurled grenades at a small U.S. base in northern Afghanistan and the ensuing gun battle left two Afghans dead and seven NATO troops injured.
Still, the top U.S. diplomat in Afghanistan said Sunday that the violence would not change Washington's course.
"Tensions are running very high here, and I think we need to let things calm down, return to a more normal atmosphere, and then get on with business," Ambassador Ryan Crocker told CNN.
In the most high-profile attack, two military advisers were found dead in their office at the Interior Ministry in the heart of the capital with shots to the back of their heads. The slayings inside one of the city's most heavily guarded buildings raised doubts about safety as coalition troops continue their withdrawal.
The incident prompted NATO, Britain and France to recall hundreds of international advisers from all Afghan ministries in the capital. The advisers are key to helping improve governance and preparing the country's security forces to take on more responsibility.
A manhunt was under way for the main suspect in the shooting an Afghan man who worked as a driver for an office on the same floor as the advisers who were killed, Interior Ministry spokesman Sediq Sediqi said. He did not provide further details about the suspect or his possible motive.
The Taliban claimed that the shooter was one of their sympathizers and that an accomplice had helped him get into the compound to kill the Americans in retaliation for the Koran burnings.