Links have emerged between a Hong Kong travel firm and two men arrested in Cambodia on suspicion of masterminding an international human smuggling racket. Detectives are investigating the Silver Bridge Tour Company, whose Cambodian headquarters was raided by police 12 days ago, uncovering scores of mainland illegal immigrants. Two men listed as directors of the firm, which has vacated its former office in Wing Lok Street, Sheung Wan, were also arrested. One of them, Chan Hak-so, 44, is wanted by Hong Kong police after fleeing the territory last month while facing forgery charges. His alleged accomplice, Chan Yui-chun, 43, was also under investigation here but had not been charged. Assistant Commissioner of Police (Crime) Mike Horner said it was likely investigators would go to Cambodia to interview the two men, who appeared in Phnom Penh's Municipal Court yesterday. Cambodia's Interpol chiefs say the smuggling network, using forged passports and visas, could have seen thousands of illegal immigrants shipped to Europe and the United States from Phnom Penh through the territory in recent years.