Zhanna Nurzhanova (pictured), 36, was said to be furious that her boyfriend had sent his sister pictures of another woman on his phone

A jealous girlfriend has allegedly cut off her boyfriend's penis after finding out he had complimented another woman's looks.

Zhanna Nurzhanova, 36, was said to be furious that her boyfriend had sent his sister pictures of another woman on his phone.

The man, whose name has not been released, made a complimentary comment about the appearance of the woman, who is described as an acquaintance.

Nurzhanova is accused of secretly giving her boyfriend a sleeping pill and waiting for him to pass out at their home in the city of Astana, the capital of Kazakhstan.

The accused woman, who works at a beauty salon, then allegedly injected him with a local anaesthetic and cut off his penis.

Nurzhanova is said to have driven him to a local hospital for treatment, where doctors called police and she was arrested.

Surgeons tried to reattach the severed organ but the damage was too severe to repair.

Nurzhanova faces charges unspecified in local reports and a reported sentence of three to six years in jail if she is convicted.