The deaths of four people found in a Mission Viejo house on Tuesday morning were the result of a murder-suicide, the Orange County's Sheriff's Department's Jeff Hallock tells KPCC.
"The preliminary investigation has indicated to us that this was an apparent murder-suicide," Hallock said.
Hallock said no suspects were being sought and that investigators had determined one of the people in the home had killed the other three before committing suicide.
The bodies were found by Orange County deputies making a welfare check after a relative's 911 call, Hallock said. It is believed that the deceased lived in that home.
"They continue to ... comb through the crime scene at this point and process each of the deceased inside," Hallock said. "They're looking for some answers to their questions and ... any evidence or clues that they may come upon that would answer the question as to ... what occurred and why it occurred."
The bodies remained in the home for most of the day while detectives sought a search warrant, according to the Associated Press.
The dead people were only described as two males and two females, and the Sheriff's Department was not releasing any information on how they may be related or their ages, Hallock told KPCC.
It was reported to the Orange County Sheriff's Department shortly after 9 a.m., Hallock said. Deputies responded to a home in the 25600 block of Pacific Hills Drive. Deputy coroners were still trying to determine the time of death late Tuesday afternoon.
The house is located in a development called Pacific Hills, a modern neighborhood of two-story, upscale homes on winding streets, according to the AP. It's near hiking trails and the community's City Hall, according to the Los Angeles Times.
Mission Viejo is a city of about 95,000 in the southern section of Orange County about 50 miles southeast of Los Angeles, the AP reports.
This story has been updated.