SANTA ANA (CBSLA.com) — One person was killed and four others were injured early Monday morning in a shooting at an Orange County restaurant.

The incident took place around 12:45 a.m. at the El Zocalo Mexican Grill and Seafood on North Tustin Avenue near East 4th Street in Santa Ana, officials said.

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According to police, an argument began in the bar area of the restaurant before the shooting took place.

One man was killed and two others suffered gunshot wounds — one was in critical condition and the other had moderate injuries.

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Two suspects attempted to escaped and were caught by customers and security officers, prompting both of them to suffer moderate injuries as well.

Police believe a third suspect may have escaped. A weapon was recovered at the scene.

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The incident was under investigation.