In a Mother's Day tragedy, a California woman and a teenager were arrested in connection with the deaths of three of her children.

Angela Dawn Flores, 38, was arrested after she admitted to killing her children with the suspected assistance of a 16-year-old believed to be her son.

"I heard someone screaming, 'My family is abusing me,' and all kinds of nonsense. I couldn't make out what it was," Prisila Canales, a neighbor, told CBSLA. "I guess at that time she was in our neighbor's yard ... burning a candle, and she had the Bible out."

Police arrived on the scene early Sunday morning after receiving a call from a neighbor believing an attack had been carried out with a deadly weapon at her residence, according to a press release from the Los Angeles Police Department.

WOMAN MOVED TO MIAMI HOSPITAL AFTER VISITING RESORT WHERE THREE AMERICANS DIED

Authorities discovered three dead children: a 12-year-old girl and two 8-year-old male twins. Los Angeles Fire Department paramedics, who were called to the scene, determined all three of the children were dead.

Flores, who has seven children, was named the main suspect and was arrested Sunday evening. Flores's other three children are living with their father out of state.

The 16-year-old ran to a nearby house but was subsequently arrested and is now being held without bail at the juvenile hall in Sylmar, according to the press release. Police are refraining from releasing additional information about him because he is a minor.

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Flores is facing three murder charges and was brought to a hospital for a mental evaluation, per Fox 11. The 16-year-old is facing one murder charge. An investigation into the incident remains open, according to the LAPD.