A university said it was "shocked" by the fatal stabbing of a 19-year-old student near its campus.
The man was found wounded near the University of Northampton's Waterside Campus at about 20:40 BST on Sunday. Northamptonshire Police said he died at the scene on New South Bridge Road.
Three men and one woman, all aged between 18 and 19, have been arrested in connection with the incident.
The university said it was supporting students and staff.
Vice chancellor Annie-Marie Kilday said: "It is with the deepest sorrow that we learned the victim of this crime was a student at the University of Northampton.
"We are offering our help and support to his friends and family, along with our most heartfelt condolences.
"Our priority has always been keeping our students safe, and so the fact this terrible crime happened near to our campus has shocked us all.
