A planned attack launched from Pakistan has been foiled, says the spokesman of the ministry.
Afghan security forces, meanwhile, arrested a potential homicide bomber as he attempted to board an army bus in Kabul, Interior Ministry spokesman Zemeri Bashary told reporters.
Authorities have been wary of attacks targeting army or police buses in Kabul after two such attacks this year.
The attacker was from the Pakistani city of Peshawar, Bashary said. Afghan and Western officials say many homicide bombers are trained in neighboring Pakistan and then cross the border into Afghanistan to carry out their attacks.
An Afghan soldier kicked the man as he tried to board the bus, and when the attacker fell down, he was unable to detonate his suicide vest, said Kabul police chief Mohammad Salim Hasas.
The officials displayed the defused suicide vest for the media and said the attacker was undergoing blood tests because he appeared to be under the influence of drugs. Hasas said the attacker’s identity would not be revealed in hopes he would inform on other attackers.
More than 6,000 people have died in insurgency-related violence this year — a record number, according to an Associated Press count based on figures from Western and Afghan officials.