A 16-year-old schoolgirl has been arrested on suspicion of attempted murder after a welfare officer was stabbed at a secondary school.
The victim, a 61-year-old woman, suffered non-life threatening wounds in the attack just before 9am at Winterton Community Academy in North Lincolnshire, Humberside Police said.
In a statement, the force said the schoolgirl, a student at the academy, was being questioned by officers.
None of the other children witnessed the attack, according to Chief Superintendent Christine Wilson.
She said: "Staff at the school and police officers responded to this isolated incident very quickly, and one person is currently in custody as a result.
"There was no disruption to any other children, none of whom witnessed the incident. Children at the school have not been directly affected by this."
Parents were alerted of the "serious incident" by text on Monday morning.
Headteacher Gareth Morris said the attack was an "isolated incident" and the is remaining open.
He said: "We are keen to reassure parents and the community that this is an isolated incident and that the school remains open.
"We will support our staff directly affected and will be keeping parents updated throughout the day."
