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Mystery surrounding Afghan schoolgirls poisoning

4 July 2012 Last updated at 14:22 BST

The Afghan government has blamed the Taliban for a wave of suspected poisoning at girls schools.

No-one has died, but girls have fallen ill in more than a dozen incidents. Chemical tests have failed to find evidence of any poison and some blame mass hysteria.

But now the government has for the first time - made some arrests.

Quentin Sommerville reports.

Afghan schoolgirls are 'poisoned'