Related readings: Beijing 120 recruits foreign language volunteers Beijing plans to step up recycling, waste-recovery Beijing2008.com turns into beijing2008.cn Overpopulated Beijing facing water crisis Beijing vaccinates 550,000 dogs against rabies

Efforts must be made to ensure that staff members involved in the Olympic preparations and venue construction projects remain on track, Liu was quoted as saying by Wednesday's Beijing Daily.

Liu, who is also chairman of the Beijing Organizing Committee for the 2008 Olympics, was speaking following an announcement by the CPC Central Commission for Discipline Inspections of the expulsion of former Beijing vice mayor Liu Zhihua from the Party.

Liu Zhihua, who had also been dismissed from all administrative posts, was found to have taken millions of yuan in bribes by taking advantage of his official position.

Liu Zhihua was elected vice mayor in 1999 in charge of overseeing construction, real estate, sports and traffic projects in the capital.