At least 18 people, mostly civilians, were killed Saturday when a suicide car bomber targeted a convoy of provincial security forces in eastern Afghanistan, an Interior Ministry official said.
Najib Danish, the ministry's deputy spokesman, said the target of the bomber was a group of guards providing security for U.S. forces in Khost province, but most of the victims in the attack were civilians.
Zabihullah Mujahid, a spokesman for Taliban, claimed responsibility for the attack in a media statement. Taliban insurgents have increased their attacks against Afghan security forces since announcing their spring offensive last month.
The security forces were attacked near...