Two Australian men have come forward to reveal they were interrogated by Chinese officials in regards to an investigation launched by Former Prime Minister Malcolm Turnbull.

The interrogators wanted to know more about Turnbull’s investigation into China’s influence in Australia and pressed for information about John Garnaut, the man appointed to lead the investigative team.

One of the men, former Chinese government official Yang Hengjun, has been detained in China since January and denied access to a lawyer.