The Chinese Government and Chinese Olympic Committee have not yet responded to the latest allegations but have denied involvement in individual doping cases in the past.

China is among nine countries currently suspended by the International Weightlifting Federation due to multiple doping failures.

This included three Beijing 2008 female gold medal winners,  Xiexia Chen at under 48 kilograms, Chun Hong Liu at under 69kg and Lei Cao at under 75kg.

An investigation was also launched by the World Anti-Doping Agency in March 2016 into alleged cover-ups of failed drugs tests in Chinese swimming.

It was reported that a total of five Chinese swimmers tested positive, with two coming in October and three at the turn of the year.

Three-time Olympic champion swimmer Sun Yang also served a secret three month ban for doping in 2014 after a failed test for banned stimulant trimetazidine.

He had returned to competition before news of the suspension emerged.

By Nick Butler