Unknown armed men have attacked a mini-bus of the Taliban Al-Farooq Corps doctors in Herat province, killing four and injuring 18 others, local sources reported.
The attack was carried out in the city of Herat Thursday morning.
So far, four dead and 18 injured are reported as a result of the attack.
The death toll however may reportedly rise.
The Taliban members have not yet provided details on the incident.
There was no immediate claim of responsibility for the attack yet.
Meanwhile, the Islamic State Khorasan Province (ISKP) fighters have previously attacked three times on the members of Al-Farooq Corps in Herat province that reportedly left scores killed and injured.