Police said that upon initial investigations of the scene around the car, the cadaver dogs “made a slight notification of possible human remains.”

The Atherton Police Department said in a statement that officers were called to the residence on the 300 block of Stockbridge Avenue at around 8:50 a.m. PDT on Thursday after the vehicle was uncovered by landscapers working on a project at the home.

The unknown nature of why the vehicle was buried at the home prompted officers to call cadaver dogs to assist at the scene.

The San Mateo Crime Lab was contacted later to assist with the continued excavation of the vehicle. While the excavation process is ongoing, no human remains had been located at the scene as of Friday morning.

The vehicle was possibly buried in the 1990s, police said, at a depth of four to five feet. Several unused bags of concrete were also found inside the vehicle.

The vehicle was buried on the property before the current homeowner moved in, police said, and the circumstances and motives behind the incident remain “under investigation.”

“We should know hopefully by the morning if there is something or if there isn’t something,” Atherton Police Commander Dan Larsen told The Mercury News.

Newsweek reached out to the Atherton Police Department for comment.

The bizarre discovery comes two days after police in Los Angeles took a man armed with two swords into custody after he allegedly stabbed a woman. Eric Herrera, 23, was charged with attempted murder after the incident on Tuesday night, the Los Angeles Police Department said.

In other California crime news, there are growing concerns that dogs across the state are being deliberately poisoned with methamphetamine after a number of dogs began turning up at veterinary clinics exhibiting symptoms associated with the drug.

Loki, a 10-year-old Alaskan Husky, fell ill after a walk with his owner, David Espinal, in San Jose. Espinal became alarmed after his dog began behaving erratically after they got home.

The dog was taken to a MedVet clinic in Silicon Valley, where veterinarians gave him a drug test that determined he had eaten meth during the walk.

Loki’s close call also came a week after tragedy struck a California tree surgeon who died after falling into a woodchipper.

The Menlo Park Police Department said officers raced to the 900 block of Peggy Lane at about 12:53 p.m. on October 11, following reports that a tree trimmer fell into a chipper. Upon arrival, a male subject was found deceased as a result of the injuries sustained from the incident.