LOS ANGELES (CBSLA) — Police are investigating the stabbing death of a female Asian adult and a male Asian adult Tuesday.

Los Angeles County Sheriff’s Homicide detectives responded to the 4200 block of Center Street to assist the Baldwin Park Police Department. Police were called by a possible family member to check on their welfare when they were found dead.

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Police said the stabbing occurred just after noon. Investigators are not sure if they were murdered by someone else or if it was a murder-suicide, Lt. Moore with the sheriff’s dept. said.

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“All theories are on the table,” Moore said.

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The investigation is on-going. Stay with CBS2 and CBSLA for more information.