Gunmen killed at least 13 civilians, including a woman, after stopping their vehicles in Afghanistan's Maidan Wardak Province on Monday night, local media reported.
The militants opened fire on passengers in vehicles plying on the Kabul-Ghazni highway, officials told Pajhwok Afghan News.
According to Afghanistan's TOLOnews agency, security forces clashed with the militants after the attack and killed one of them.
"After the shooting, the security forced arrived in the area and began clashing with the insurgents. One of the insurgents were killed while the rest fled the area," governor's spokesman Abdul Majid Khogyani told TOLOnews.
However, Taliban - the group behind most terror attacks in the country - has not claimed responsibility for Monday's attack as yet.
The incident comes a month after gunmen abducted 30 ethnic Hazara passengers from a Kabul-bound bus. Their fate is still unclear.
Unknown gunmen have killed 13 civilians on Kabul-Ghazni highway, officials told TOLOnews. pic.twitter.com/VzQ11ycqbM
— TOLOnews (@TOLOnews) March 24, 2015