According to authorities, the stabbing took place on Harding Place between Dixwell Avenue and Sherman Parkway around 1:00 p.m.
Officials said the victim is a 46-year-old New Haven man. He was transported to a local hospital for treatment.
Two men are in custody and charges are pending.
At this time, it is not known what prompted the stabbing to take place.
News 8 will update this story with more information as it becomes available.