Police are investigating an online scam in which Chief Executive Donald Tsang Yam-kuen's photograph is used on a bogus website that claims to be able to help mainland Mark Six punters who have been cheated in other scams. The fake website (998009.com) promises to reclaim money for those who have lost more than HK$1,000 on fake Mark Six sites. It asks people to pay 10 per cent of what they have lost upfront. It says those who have been cheated out of more than HK$10,000 will be given tips for the next Mark Six. 'From 2005, we have noticed many bogus websites disguised as our company to deceive people. Many mainlanders have fallen prey,' the website says. It purports to be an authorised agent for the Jockey Club and carries a photograph of Tsang, Hong Kong police and the bauhinia emblem of Hong Kong. It is not clear if the site's operators are based in Hong Kong or over the border. It claims to have been named 'the most reliable website' by Tsang and says it will donate any unprocessed money to an orphanage. A spokesman for Tsang's office said he had nothing to do with it while a Jockey Club spokesman said the website was bogus.