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These are the horrendous wounds left on a nine-year-old boy after he was abused by his foster mother – for not finishing homework.

Police say the innocent young boy was hit with a scratching rod, whipped with ropes and kicked by the woman, who is in her 50s.

(Image: Rex Features)

Horrific scars were found on the boy's hands, feet and back after her told teachers that his parents were beating him with water pipes and branches, burning him with water vapor, and jabbing him with nibs.

According to police, the boy was abused because he could not finish the extra homework his foster mother gave him.

(Image: Rex Features)

The adoptive mother has now been detained by police for "willful and malicious injury", the Nanjing Morning Post reports.

The boy, of eastern China, was legally adopted when he was six and has now been temporarily placed with his biological parents.

According to the Nanjing Morning Post, his adoptive parents work as a journalist and a lawyer.