POMONA (CBSLA.com) — Authorities Tuesday were investigating the fatal officer-involved shooting of a knife-wielding suspect in Pomona.

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The shooting occurred at 7:33 p.m. Monday after Pomona police responded to the 500 block of Carruthers Court for a call of a family disturbance and a man with a knife.

When officers arrived on scene, they found a 47-year-old man holding a large kitchen knife who was acting aggressive, the Pomona Police Department said.

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“As the officers engaged the suspect, they attempted to utilize a Taser device which proved ineffective and when the suspect advanced on the officers, an officer-involved shooting occurred,” Lt. Dave Coleman said.

The man was transported to a local hospital where he was pronounced dead. No officers were injured in the shooting.

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The Los Angeles County Sheriff’s Department is assisting in the investigation.