Five Afghan teachers and 40 of their pupils, most of them girls, have been admitted to hospital with severe headaches after a suspected airborne poison attack, the Public Health Ministry said on Monday.
They fell ill on Sunday afternoon during a ceremony at a school in the Sadiqi district of Parwan province, some 70 km (40 miles) north of the Afghan capital, Kabul.
"Among them there are 5 adults and 40 children, most of them girls, who have been affected," Dr Abdullah Fahim, spokesman for the Public Health Ministry said.
"For the time being, it seems to be airborne poisoning. But it's not confirmed yet what the actual reason is," Fahim said.