Afghanistan: Poison gas attack hits Afghan school - many taken to hospital

At least 70 students and teachers at an all girls school in Kabul, Afghanistan's capital, have been sickened by an unknown gas that spread through classrooms.

School authorities evacuated everyone from the building and many of the girls were taken to hospitals.

It is still not clear who is behind the incident, but there is suspicion that the Taliban, who has opposed sending girls to schools, is responsible.

Hoda Abdel-Hamid reports from Kabul on what has become a part of a pattern of attacks on schoolgirls in the country.