Afghanistan's intelligence agency prevented a large terrorist attack, arresting a Pakistani citizen driving a truck packed with explosives, according to a statement Thursday.

The agency said in the statement that the man was arrested on a main road in Kabul's east. It said the man was going to use the truck bomb in a suicide attack, but it was unclear if the attack was imminent.

The agency did not say what the suspected target was. It pledged to release more details as they became available.

The arrest came a day after a suicide attack on the same road killed seven people. In that attack, one militant detonated his car bomb outside a compound where foreigners live, while two other attackers dressed as women fought their way inside before being killed.

In eastern Paktya province, six Taliban militants were killed and two others wounded Thursday when the roadside bomb they were building in a mosque exploded, said Roullah Samon, a spokesman for the provincial governor. He said four of those killed were foreign fighters.