Ventura police responded to a report of a stabbing on the 500 block of East Santa Clara Street around 1:25 a.m.
Authorities say a man was stabbed after he and his friends were confronted by another group of men who belonged to a gang and an argument developed.
The victim was transported to Ventura County Medical Center where he underwent surgery for a non-life threatening injury.
The suspect was described as Hispanic male in his 20s, approximately 6 foot and weighing around 190 pounds. He was last seen wearing a black shirt and dark pants.
An investigation was ongoing.
Anyone with information was asked to contact the Ventura Police Department at (805) 339-4416.