The Chinese President Hu Jintao has warned members of the ruling Communist Party that corruption could cost them the support and trust of the people. Mr Hu made the comments in an address in the Great Hall of the People in the capital, Beijing, marking the 90th anniversary of founding of the party. He praised the party's achievements since taking power in 1949, but said the members have to be more disciplined than ever. The party has nearly 80 million members. In a 90-minute televised speech, Mr Hu talked about the obstacles China has overcome in the past century, and the achievements of the party in revolution, development and reform.