Watch: Police say school stabbing is an 'isolated incident'published at 11:50 British Summer Time 25 September 2017
A 16-year-old girl is currently in police custody after a 61-year-old woman suffered serious but not life-threatening injuries after an incident at a school.
Police say they were called to Winterton Community Academy just after 09:00 today.
Chief Superintendent Christine Wilson spoke to BBC Look North: