At least five civilians were killed and more than 15 others injured Friday when a suicide bomber detonated his explosives-laden car next to a US military convoy in eastern Afghanistan, an official said, dpa reported.
"The incident took place this morning in Tagab district of Kapisa province, where a US military convoy was on the way," said provincial Governor Mehrabuddin Safi
US troops took over security responsibility when French soldiers withdrew from Kapisa province in November.
Safi said two houses nearby were destroyed in the attack.
The NATO-led International Security Assistance Force (ISAF) confirmed the attack.
"According to our reports, there was a vehicle attack on the coalition convoy in Tagab district, but we have no reports of coalition deaths or injuries," said Les Carroll, an ISAF spokesman.
Carroll did not specify if it was a US military convoy, but said a number of civilians were killed and injured.
Taliban insurgents claimed responsibility for the attack.
"Twelve American soldiers were killed and two of their tanks were destroyed," Taliban spokesman Zabihullah Mujahid said in a statement.