Police in Sheffield have provided an update after three people were injured in a secondary school stabbing on Wednesday morning (1 May). A 17-year-old boy has been arrested on suspicion of attempted murder after the attack at The Birley Academy, which went into lockdown. A child was assaulted and two adults suffered “minor injuries” in the incident involving a sharp object, South Yorkshire Police said. Police said in an update on Wednesday afternoon that the suspect was arrested within minutes of the initial emergency call.