A candidate in Sunday's Sha Tin District Council by-election has been arrested for vote-buying, the ICAC said yesterday. A serving district councillor, three office-bearers of a welfare association and a businessman were also arrested. A source close to the investigation said the arrested candidate was former Sha Tin district councillor Lee York-fai, 41, a councillor for Wo Che Estate from 1994 to 2007, who was standing for a seat in the Mei Lam Estate and May Shing Court constituency in Tai Wai in Sunday's byelection. The spokesman said the candidate, the office-bearers and the businessman were alleged to have offered advantages and provided refreshments through the welfare association to a number of voters to encourage them to vote for the candidate. The six arrested people were also alleged to have conspired to conceal election expenses incurred, the spokesman said, added inquiries were continuing. The source said the neighbourhood and workers' association, established by Dr Lee in Mei Lam Estate in February, had provided coaches to take voters on discounted tours it offered to attractions such as Disneyland and Lei Yue Mun, where seafood banquets had been provided. The source confirmed reports that Dr Lee had dozens of social banquets in a restaurant in recent months, each with dozens of tables and charging each banquet-goer only HK$20. Dr Lee could not be contacted last night.