According to the Angolan news agency, Angop, the suspect acknowledged the authorship of the crime, which occurred on the 15th of this month, claiming passionate reasons.
A week ago the police authorities began an operation to capture the Congolese citizen, who fled, after the discovery of the bodies of the victims, the woman and three other children, by a pastor.
The 30-year-old suspect is accused of asphyxiating the woman and drowning the children in a 200 litre container of water.