Spa Report

Elaine Lam Yee-ling, spokeswoman for the Zi Teng NGO, said it had tried to contact as many prostitutes as possible who operate one-woman brothels after they learned about the first murder.

"We want them to join our communication network so that they can call one of the sex workers in the network before and after serving customers. Then we can make sure that these sex workers who work alone are safe and sound," she said.

"We also have outreach teams to contact sex workers and invite them to join our network for the sake of their safety." Miss Lam said there were about 3,000 one-woman brothels in the city, and about 700 of them had already joined the scheme.

"Most of these sex workers who work alone are quite isolated. We will try to reach out to them and persuade them to join our network. We appeal to all sex workers to call us and join our network as soon as possible so that they can look after each other."