Six American troops were wounded in the province of Kunar as the convoy they were traveling in triggered a roadside bomb. Three Afghan policemen were injured when a bomb exploded near a police station in Kabul.
News of the latest attack in Kunar came after the military announced earlier that one U.S. soldier was killed and another wounded in an insurgent attack in the southern province of Helmand early on Sunday, informs Reuters.
The bomb that exploded in Kabul destroyed a shipping container being used as a security post on a road leading to Kabul airport, said Mahboub Amiri, chief of Kabul's rapid reaction police force.
He said the police officers were critically wounded by the blast, which was caused by a remote controlled device. It also damaged a U.N. vehicle, but no U.N. staff were wounded.
Amiri said the attack may have been the work of Taliban militants but no arrests had been made.
"We are aggressively looking for the individuals responsible for this attack," Army Lieutenant Colonel Jerry O'Hara commented on the explosion.
Kabul has been the scene of several bomb attacks since U.S.-led forces overthrew the Taliban government in late 2001 seeking to flush out Osama bin Laden and his al-Qaida network.
Establishing better security is a priority as Afghanistan prepares to hold parliamentary elections September 18. The parliamentary vote will be the first since the fall of the Taliban.