A Singaporean man, who told his daughter to consume sleeping pills to spite his estranged wife, pleaded guilty to the crime Tuesday.

On April 7, 2018, the unnamed man and his estranged wife, who lived separately, had a telephonic argument over their 11-year-old daughter’s ill-health.

Following the quarrel, the man called his daughter to his room and told her to consume sleeping pills that were prescribed to the father’s mother. The girl swallowed six pills.

The man and his daughter then went to a nearby playground where he explained to her he wanted to prove to the girl’s mother their frequent arguments were causing stress to the child. He added that she wasn’t taking proper care of the girl.

The man then instructed the victim to consume more pills. Moments after eating the pills, she felt weak and lost consciousness, Today Online reported.

He then took the girl to his wife’s apartment around midnight. On the way, he called the paramedics. Upon reaching the woman’s home, the man left the girl on the floor outside the door.

When the woman opened the door, he told her "she would be answerable if anything happened to the victim," Deputy Public Prosecutor told the court Monday, Yahoo News reported.

The girl was rushed to the hospital by the paramedics. Tests revealed the girl had overdosed on Amitriptyline, a substance found in sleeping pills. The substance is listed as poison under the Schedule of the Poisons Act.

At the medical center, the man instructed the girl to tell the investigators she had voluntarily taken the pills in order to kill herself.

The victim then told the officers that she consumed the pills with intent to kill herself because none of the family members cared for her.

However, the truth came to light a few months later when the victim spoke to social workers about it.

The man was taken into custody and following a trial, he pleaded guilty to multiple crimes, including one count each of ill-treating the girl and perverting the course of justice.

The next court hearing is scheduled for Dec. 9.

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Representational image of a handcuff. Pixabay