Police have arrested a man in connection with a case in which another man was forced to strip naked and walk down a busy Mong Kok street about 20 days ago. Police said they arrested the 28-year-old suspect, surnamed Ho, at 1.30am in Tuen Mun and questioned him about alleged criminal intimidation and assault. The Mong Kok district anti-triad squad has been investigating the incident but has yet to identify the victim. The suspect was still being held for questioning yesterday. The arrest came after a video clip appeared on YouTube showing a man being mobbed by three men, shouted at and demeaned near the 7-Eleven store at the junction of Shanghai Street and Soy Street. One of the men is seen hitting the victim with what appears to be an umbrella before the trio forced him to strip and 'walk a circle, go there and come back'. The 21/2-minute clip, apparently recorded by someone living opposite, attracted more than 47,000 hits before it was removed on Friday. One witness said the incident happened one morning about 20 days ago and the victim appeared to be mentally disabled. Police declined to confirm rumours that the man was being punished by pimps after failing to pay a prostitute. They have appealed for witnesses to contact police on 2398 6200.