A Kansas City woman has been charged with first-degree murder for allegedly decapitating her 6-year-old son.

The Jackson County Prosecutor’s office said the woman, identified as 35-year-old Tasha Haefs, was charged on Wednesday, a day after cops found the boy dead at their east Kansas City home.

Police said in an affidavit for a search warrant that a woman called from the residence and said the devil was trying to attack her before she hung up.

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Officers responding to the home saw blood on the front steps and apparent blood and hair on the front door and a severed head near the home’s threshold. A woman inside the residence refused to open the door.

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After the responding officers were told other children lived in the house and had not been seen for several days, they forcibly entered the home and found the boy’s body. They then saw Haefs with blood on her and knives and a screwdriver with apparent blood throughout the home.

No other children were found in the home. A decapitated dog was found in the basement of the residence. 

During a police interview, the accused identified the victim as her 6-year-old son and admitted that she killed him in a bathtub and decapitated him. She was taken into custody and charged with armed criminal action along with first-degree murder. She was being held in the Jackson County Jail on no bond. It remained unclear where the other children in the home were.

Meanwhile, Jackson County Prosecutor Jean Peters Baker said in a statement that the child’s gruesome death “takes our breath away.”

She said the death calls for law enforcement, public health, social services and all their partners to work to better protect Kansas City’s children.

“Let’s also focus, Kansas City, on the violence among us. It’s a challenge we can no longer ignore. We cannot become complacent with 180 or 170 or even 150 homicides per year and hundreds more shot but not killed. … Going forward let’s keep a clear goal: Reduce our community’s violence and alert mental health professionals whenever we are aware of someone in need of intervention,” the statement said.