A Northern California man has been arrested on suspicion of killing four people after he showed up at a police station with a body in his car.

Authorities in Mount Shasta say Shankar Hangud, 53, walked into the lobby of the police department Monday afternoon and told officers he had killed four people at his apartment in Roseville, more than 200 miles away.

One of the possible victims was in his car, police say. Roseville police went to the suspect’s apartment and found three more. Search warrants are being obtained for both scenes in Roseville and Mount Shasta.

Police said today they believe the four homicide victims were his family members. However, Roseville police Capt. Josh Simon would not say whether the four people who were killed were immediate family members or distant relatives.

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Two of the victims were minors and two were adults, but Simon did not provide the victims' ages.

"Nothing comes to my mind that I can think back and remember anything of this magnitude happening in the city of Roseville," Simon said.

Detectives believe the four killings happened over a period of several days, he said. He did not say how the four people were killed but said it wasn't likely they were shot.

"I don't have any knowledge that there were any firearms located at any of the crime scenes," Simon said.

Contributing: The Associated Press; Jenny Espino, Damon Arthur, and David Benda, Redding Record Searchlight. Follow Adrianna on Twitter: @AdriannaUSAT.