Mysterious children's illness in Chechnya of psychological nature

The mysterious illness that has hit scores of schoolchildren in &to=' target=_blank>Chechnya, fueling speculation that it could be linked to a nerve gas, is of psychological origin and likely has been caused by stress in the fighting-plagued Russian republic, doctors said Friday.

About 80 people, including 58 children, fell ill this week in several towns with breathing trouble, headaches and cramps, prompting authorities to close schools.