Social media in China has been appalled by a cross-dressing, middle-aged man who claims to have had sex with more than 1,000 men, secretly filming them and sharing the videos online.

Police in the city of Nanjing in eastern China’s Jiangsu province said they had arrested a 38-year-old man, surnamed Jiao, for disseminating obscene material on July 5.

The mainland media reported that Jiao, who has been nicknamed “Nanjing Uncle Red”, installed a hidden camera in his flat and filmed himself having sex with his male visitors.

Jiao then shared the video footage in an online group and profited from a membership fee of 150 yuan (US$21) per person to join the group.

Some of Jiao’s victims reportedly saw themselves in the leaked videos and reported him to the police.