Three men have been arrested in connection with the incident.
A second man has died after a triple stabbing in Halifax, West Yorkshire in the early hours of Sunday.
Officers were called to reports that three men had been assaulted in Commercial Street at just before 3.50am.
All three were taken to hospital with stab wounds.
A 21-year-old man was pronounced dead a short time later, while police said a 19-year-old died late on Sunday evening.
The third man, aged 18, has been treated for an injury that was not life-threatening.
Three men, two aged 18 and one aged 19, have been arrested in connection with the incident and all remain in police custody.
