The officials further added, the incident took place in Bibi Maryam girls high school early Sunday morning and were taken to hospital for treatment purposes.
Provincial public health chief Dr. Hafizullah Safi confirming the report said the main reason behind the poisoning of the school girls is still unknown.
Mr. Safi further added that majority of the students were discharged from the hospital and medical tests did not confirm the specific reason behind the pisonining of the girls.
On Thursday, a total of 17 students were hospitalized after a similar incident in a girl high school in the same city, some 245 km north of Kabul.
Several dozen of gas attacks against girl schools have been reported across Afghanistan over the past couple of years.
No group or individual has claimed the responsibility for the incidents so far. Radical Islamic groups and anti-government militants had in the past been blamed for such gas attacks.