Police who solved a spate of mystery burglaries were shocked to find the culprit was biting his way through steel window bars.

Detectives in Nanjimen region, Chongqing, were puzzled by continuous reports of break-ins through caged windows.

"Through our investigations, we found the grids had been cut but with deep tooth prints," a local police spokesman told the Chongqing Business Daily.

Eventually, their inquiries led them to interview a man who revealed he was sharing a hotel room with a man who could crack walnuts with his teeth.

Ananova - Burglar bit through steel bars