It was unclear whether children were among the casualties.
The attack occurred about lunchtime (04:00 GMT) at a school in Guixi City.
According to police, a 45-year-old woman committed the crime using a fruit knife. She has since been under control, according to a social media statement from police.
Parents at the school expressed astonishment and terror when they learned of the attack.
I heard the news at midday, and I was quite astonished,” one told the news, speaking on the condition of anonymity. “My child is in fifth grade and very young, and he has safely returned home, but the school has not informed us of anything and has kept everything secret.” I’m going back to console my child and find out what occurred.
