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Los Angeles Police Department Chief Michel Moore said an officer is believed to be in stable condition Saturday night following a shooting at the agency’s Harbor Station in San Pedro.

The department tweeted about a “significant police incident” at the station at 10:30 p.m. Then, around 11:15 p.m., LAPD confirmed there was an officer-involved shooting.

“We can confirm that there has been an Officer-Involved Shooting at LAPD’s Harbor Station,” the tweet read. “A Public Information Officer is responding, and we will provide more details as they become available.”

Moore said in a tweet at 11:22 p.m. that he was heading to the hospital.

Earlier, just before 11 p.m., L.A. City Councilman Joe Buscaino tweeted about an LAPD Harbor Division officer being shot. However, the Los Angeles Times later reported that police confirmed the officer suffered a head injury after being attacked by an unknown assailant.

No other details have been released as of 11:30 p.m.