BUENA PARK (CBSLA.com) — Authorities Monday investigated the discovery of human remains found buried in the back yard of a home in Buena Park.

According to police, the remains were located just before 6 p.m. Sunday in the 8200 block of Commonwealth Avenue near Indiana Street.

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“The homeowner had been digging in the backyard, and came across bones in the dirt a few feet from the surface,” Sgt. Mike Lovchik said. “The resident notified police, and responding officers confirmed that the bones appeared to be human.”

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KNX 1070’s Pete Demetriou reported the homeowner dug up a skull.

CBS2’s Joy Benedict reported the home was built in the 1930s. Neighbors say the property was farmland before builders broke ground.

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The remains were collected by the coroner’s office for further investigation. A cause of death remains unknown.