Updated

Chinese state media say a police officer who oversaw the case of a teenager wrongfully convicted of murder and executed in 1996 has been arrested.

The official Xinhua News Agency said Thursday that Feng Zhiming was charged with using torture to coerce a confession, dereliction of duty and taking bribes.

Three days earlier the Inner Mongolia Higher People's Court in northern China overturned the conviction of Huugjilt, who was 18 when he was sentenced to death and executed over the killing of a woman in a public toilet.

A convicted serial rapist and murderer confessed to the killing in 2005.

Feng was in charge of investigating Huugjilt, who used only one name, and later rose to be a deputy police chief in the regional capital, Hohhot.