Human remains found behind home near Alamo Square in S.F.

A San Francisco Police patch is seen on the uniform of an officer as he stands with members of the board of directors, members of the association and members of the community while Martin Halloran (not shown), San Francisco Police Officers Association president, speaks during a press conference at the San Francisco Police Officers Association headquarters on Wednesday, December 16, 2015 in San Francisco, Calif. less A San Francisco Police patch is seen on the uniform of an officer as he stands with members of the board of directors, members of the association and members of the community while Martin Halloran (not shown), ... more Photo: Lea Suzuki, The Chronicle Buy photo Photo: Lea Suzuki, The Chronicle Image 1 of / 1 Caption Close Human remains found behind home near Alamo Square in S.F. 1 / 1 Back to Gallery

Human bones were found in the back of a home near Alamo Square, setting off a police investigation, authorities announced Wednesday.

On Nov. 23, a resident gardening behind a home in the 1300 block of McAllister Street found what appeared to be bones, said Carlos Manfredi, a San Francisco police spokesman.

The resident took the bones to the Northern police station, and officials filed a report. Later, the Medical Examiner’s Office confirmed the bones were human, Manfredi said.

Marin County Sheriff’s Office cadaver dogs brought to the site searched and indicated it was possible more human remains were on the property, Manfredi said.

Officers, joined by the Medical Examiner and Chico State performed a small excavation of the area but did not find more human remains. The investigation was ongoing.

Jenna Lyons is a San Francisco Chronicle staff writer. E-mail: jlyons@sfchronicle.com Twitter: @JennaJourno