The teenager died at the scene despite the best efforts of paramedics, say police.
Three people have been arrested in connection with the fatal stabbing of a 16-year-old boy in Corby.
Northamptonshire Police said they remained in custody following the incident on Tuesday evening.
A murder investigation was launched after officers were called to reports of the stabbing at Constable Road just before 19:00 BST.
Despite the best efforts of paramedics, the boy died at the scene.
The force said inquiries were progressing “at pace” and detectives investigating the incident were appealing for witnesses.
The BBC is not responsible for the content of external sites.