Two men have been arrested after the rape of a 17-year-old girl on a Tuen Mun public housing estate. One suspect was detained after police officers checked a dozen tapes recorded by closed-circuit TV at Wu Fai House, Wu King Estate. The 21-year-old was seized on Tuesday night after 50 police officers conducted a door-to-door investigation in the residential block. He was identified as a resident through the video footage. Police arrested another man during a raid elsewhere in Tuen Mun. At about 1.30am on Tuesday, two men - one with dyed orange hair - followed the victim into a lift and threatened her with a cutter. They then dragged her about 10 floors to the top-floor staircase of the 24-storey block where she was raped. Her belongings, including a bank card and a chain of keys, were stolen. 'About 20 officers spent more than six hours checking all the CCTV tapes and identified the suspect as someone who lived on the estate,' a source said. An identification parade is to be held today. Neither man has been charged. Police were also investigating whether the two men were linked to other rape and robbery cases in Tuen Mun.