Some 45 schoolgirls fell ill Sunday when poison gas was released in their school in northern Afghanistan, an official said - the second such attack at the school in a week. The incident took place in a "Bibi Hajera" Girls' High School in the provincial city capital of Taloqan, Jan Mohammad Nabizada, an education official, told DPA. The victims were taken to hospital, he said, blaming the Taliban for the attack.