LONG BEACH (CBSLA.com) — Authorities Sunday said a man was hospitalized after sustaining a stab wound to his upper torso following an altercation at a Long Beach restaurant.

The incident happened about 6:30 p.m. Saturday at the Sushi on Fire restaurant in the 5300 block of E. 2nd Street in the Belmont Shore area.

READ MORE: LA Expands Eligibility At Vaccination Sites Starting Monday

Upon arriving on scene, officers learned that there had been an altercation between two patrons.

Long Beach police Sgt. Aaron Eaton told KNX 1070’s Kim Marriner the pair continued to argue as they left the restaurant. Authorities say that’s when one man pulled a knife out and allegedly stabbed the other.

“And [he] received injuries to his upper torso. He was transported to a local hospital in critical condition. The suspect was detained at the scene and later arrested,” the sergeant said.

READ MORE: Man In His Mid 30s Fatally Shot In Carson

Eaton identified the suspect as 30-year-old Richard Campbell. The unarmed stabbing victim was transported to an area hospital in critical condition.

“At this point, we don’t know exactly why the fight occurred and ask if anybody did see or has information about it to please give us a call,” Eaton said.

Campbell was subsequently booked on suspicion of assault with a deadly weapon.

No further information was immediately available.

MORE NEWS: 2 Riverside Co. Sheriff's Deputies Recovering After Being Hit By Delivery Van; 2 Pedestrians Killed

(©2013 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)