Bones were unearthed at 3025 21st Street this afternoon, police have confirmed.

“The medical examiner is responding to confirm if the bones that were found are human,” said SFPD spokesman Officer Joseph Tomlinson.

A Medical Examiner spokesperson did not return a message.

Police responded to the residence around 1:30 p.m., according to neighbors. By 4:50 p.m., half a dozen police officers — including what appeared to be crime scene investigators — walked in and out of the residence.

Robin Whiteside, on whose property the remains were discovered, said police instructed her not to talk about the bones until investigators figure out what exactly was found. She said the remains were found during gardening work.

She stated that she has lived at the residence for 30 years. But there was plenty of time prior to her tenure for something to be buried here. This home was built in 1875.

This is a breaking story. We will update this post when more information becomes available.