Officers responded to the Dave's Hot Chicken on 2nd Street and Covina Avenue around 1 a.m. Sunday and found a man with a stab wound to his upper body, according to the Long Beach Police Department.
The man, who has not been identified, was taken to the hospital where he later died.
Details about what led up to the stabbing were unclear, but authorities say the preliminary investigation suggests there was a physical altercation between the victim and suspect. During that altercation, the suspect stabbed the victim and ran from the scene.
A motive for the stabbing has not been determined.