GUANGZHOU - A total of 920 suspects had been apprehended as of Wednesday in a crackdown on the illegal sex trade in South China's Guangdong province, local authorities said.

Police have swooped 18,372 entertainment venues, including 3,592 karaoke bars and 4,201 saunas in the province. A total of 38 Karaoke bars and 156 saunas and massage parlors have been closed, said the provincial public security bureau.

The new crackdown came hours after a China Central Television (CCTV) program on Sunday revealed that a dozen hotels in Dongguan city were  offering sex services.