Police investigating after landscapers find car buried decades ago in yard of multi-million dollar California home

Police are digging into why someone buried a car in the yard of a multi-million dollar Northern California home in the 1990s and left unused bags of concrete inside. The car was discovered Thursday morning by landscapers in the affluent town of Atherton in Silicon Valley, police said in a news release titled "suspicious circumstances."

Cadaver dogs were brought in and "made a slight notification of possible human remains," but none had been found more than 12 hours after the car was recovered, according to Atherton Police Cmdr. Daniel Larsen.

The San Mateo Crime Lab was contacted and sent technicians to assist with excavating the vehicle, police said.