Boy, 15, dies after being stabbed at school in Sheffield, police say
A 15-year-old boy has died after being stabbed at a school in South Yorkshire on Monday
Assistant Chief Constable Lindsey Butterfield says another 15-year-old boy has been arrested on suspicion of murder
The incident happened at 12:17 GMT at All Saints Catholic High School in Granville Road
The victim "suffered serious injuries and despite the best efforts of the ambulance service, he sadly died a short time later"
Asked about reports of a lockdown last week at the school which related to "threatening behaviour", Butterfield says it's "very very early stages" of the investigation, but "we will review that"
Boy, 15, dies after being stabbed at school in Sheffield, police say