CHIEF Executive-designate Tung Chee-hwa yesterday threw his weight behind the latest initiative to tackle sky-high housing prices. 'If property prices in Hong Kong continue to go up like this, the economy and people's livelihood will be greatly affected,' he said after a visit to Beijing. 'Therefore, actions should be taken. I believe it is appropriate what the Government is doing . . . In the long run, we have to increase land supply,' he said. The Government on Wednesday announced measures to curb property prices, triggering criticism from property developers that it was going against the capitalist system. Some have threatened to take the Government to court over requirements, among others, for them to put flats on to the market within six months after the issuing of a government approval for sale. Separately, one of Mr Tung's top advisers, Leung Chun-ying, urged the public not to adopt 'intimidating tactics' to vent their frustrations over livelihood problems. He was referring to an anonymous letter a Chinese-language newspaper said it had received, threatening to poison officials for their failure to solve the housing problem. Mr Leung, who is formulating a long-term housing strategy, said the frustration among some people over livelihood problems was 'understandable'. 'But the people here will not endorse those who vent their frustrations in the form of intimidation.' Mr Leung said his report would only give a long-term vision of housing development. It would not address specifics on issues such as whether public or private flats should provide the major source of housing, he said. Mr Leung said the change of land use of industrial buildings could provide potential for more residential flats.