Watch: Press conference at Birley Academy in Sheffield after teen, 17, arrested for attempted murder 

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A suspect is in custody

Police called a press conference this afternoon after reports of an ‘incident involving a sharp object’ at Birley Academy earlier today.

Constable Dan Thorpe, of South Yorkshire Police, and headteacher Victoria Hall read out statements after three people were injured and a teenager was arrested on suspicion of attempted murder.

Watch the video footage of the conference here.