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 on Monday 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.