A teacher allegedly poisoned 23 children at a kindergarten by tampering with their morning porridge.
It was alleged they carried out the disturbing act to get revenge on a colleague following a dispute.
The pupils in Jiaozuo in the Henan province, central China, were taken to hospital after they began vomiting and fainting on Wednesday morning, according to local reports.
One parent claimed he rushed to hospital where doctors had already pumped his child's stomach.
A child has been left with 'severe' symptoms while seven others remain in hospital for observation, reports say.
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Photographs appear to show children lying in hospital beds hooked up to drips.
The teacher has been arrested and taken into custody following the incident, the South China Morning Post reports.
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"When I arrived at the school , my daughter had already passed out," one dad said, according to the Daily Mail.
"Besides my kid, there are three or four other children all looking sick and very pale.
"My child said the porridge tasted bitter and salty when it was supposed to taste sweet."
