Police yesterday arrested a 24-year-old man in Sau Mau Ping in connection with two recent prostitute murders. 'We have arrested a 24-year-old Chinese man in Sau Mau Ping district at about 3pm this afternoon. After initial investigation, we believe he had direct links to the case' in To Kwa Wan, Senior Superintendent Leung Ka-ming, head of the Kowloon West crime unit, said last night. The arrest was the result of hours of co-ordinated effort from all five regional crime units, he said. A source said the man was arrested in his home at Lok Wah Estate, Sau Mau Ping. Eight prostitutes have been killed in the past year, with the latest three cases occurring last month. The most recent murder, in To Kwa Wan, involved a 38-year-old Thai prostitute named Amy, who was found unconscious in her flat on To Kwa Wan Road on January 31. A post-mortem examination showed she had been suffocated. Mr Leung said the unemployed man was also connected to another prostitute murder in Sau Mau Ping on January 10. A 47-year-old prostitute was found in her one-woman brothel in Chi Cheong Building at Yee On Street at about 7pm. She had also been suffocated. On January 11, the body of a mainland prostitute wearing a T-shirt and underwear, and covered with a jacket, was found in the first-floor corridor of a building in Chuen Lung Street, Tsuen Wan. She had been suffocated. Police believed she was killed in her brothel in the building and later moved. Two men were later arrested for preventing the lawful burial of the body, and one has been charged. Officers are still looking for the murder suspect. But Mr Leung did not comment on whether the arrested man was connected to that case. Police believed the Sau Mau Ping and To Kwa Wan murders occurred during robberies that went wrong. Officers had found signs of ransacking at the scene. 'We believe the suspects had searched for property, so we will follow the direction of a robbery-murder in the investigation,' Mr Leung said. Elaine Lam Yee-ling, of the sex worker advocacy group Zi Teng, said they were worried that someone related to the case was still out there as the arrested suspect was believed to be involved only in the Kowloon cases. 'We are also worried about the possibility of copycats,' Ms Lam said.