SAN FRANCISCO (CBS SF) — Police officers in San Francisco on Friday were at at the scene of a homicide at a North Beach apartment building that left a woman dead and a man in custody, according to authorities.

Multiple San Francisco police units were gathered at the building on the 1800 block of Powell Street as of 12 p.m., KPIX 5 reporter Joe Vazquez learned.

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At around 11:30 a.m., officers initially responded to a report of a domestic incident at the building, police said.

Inside, they found a woman who was not breathing and unconscious. She was pronounced dead at the scene, according to police.

The incident was in a building near the intersection of Powell Street and Filbert Street across from Washington Square Park and near Columbus Avenue in North Beach.

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Authorities said one woman was confirmed dead in the homicide. Police said a man has been arrested in connection with the fatal incident.

Powell Street appeared to be blocked off for the investigation.

Police did not offer any additional details regarding the homicide.

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The Medical Examiner’s Office is working to identify the victim.