Unknown gunmen have shot dead 13 civilians in northern Balkh province.

Reports suggest that the victims were traveling in a passenger bus that came under the attack of unknown armed men in Zari District on Saturday.

Abdul Raziq Qaderi, Deputy Police Chief of Balkh province confirmed the report but he did not have a specific number of the casualties.

However, reports from the area suggest that at least 13 civilians were killed in the attack.

In the meantime, Shirjan Durani for Balkh police said that a delegation has been assigned to investigate the incident.

No group has immediately claimed responsibility for the attack.