ARCADIA — A wounded Hacienda Heights man showed up at an area hospital late Thursday following an apparently gang-related stabbing last week, police said.

The stabbing was believed to have taken place between 1 p.m. and 3 p.m. May 11 at Santa Anita Avenue and Duarte Road, though police were notified until later, after the 20-year-old stabbing victim arrived at an area emergency room Thursday evening, according to Arcadia police Lt. Tom Le Veque.

The victim had just left a beverage shop when he was approached by two men who asked him “where he was from” — a common gang challenge, police said.

An argument took place and the two attackers punched the victim, Le Veque said.

“One of the suspects stepped back, pulled out a folding knife and stabbed the victim in the chest,” the lieutenant said. The attackers then fled on foot.

The wounded man’s injuries were not believed to be life-threatening, police said.

“The victim does have admitted gang affiliation, and based on the victim’s account, the incident may be gang-related,” Le Veque said.

The assailants were described as Latino man between 18 and 21. One wore a blue “L.A.” hat, a blue shirt, black and gray plaid shorts and white knee-high socks.

Anyone with information was asked to call Arcadia police at 626-574-5156. Tips can also be submitted anonymously by calling 800-222-8477.