THE ongoing tragedy in Rwanda - which has seen the death of over 500,000 refugees from cholera, dysentery, thirst and famine - has aroused concern around the world, and Hong Kong is all set to give a helping hand. The Hong Kong Red Cross, Medecines Sans Frontiers and Oxfam Hong Kong have organised the ''Rwanda Joint Appeal Campaign'', with the support of Commercial Radio II (CRII) and a host of local stars. CRII programme director Thomas Chow Lai-mow said: ''The plight of the Rwandan refugees has dragged on so long, and it is high time for Hong Kong people to do something.'' The singers supporting the campaign include Roman Tam, Veronica Yip Yuk-hing, Liz Kong Hei-man, Karen Tong Po-yu, Winnie Lau Siu-wai, Eddie Ng Kwok-king, Edmond Leung Hon-man, the bands Grasshopper and Girlfriends, among many others. The singers wrote messages of consolation and concern on several placards that were displayed in 15 locations across the territory last Sunday. The main purpose of the display was to arouse the concern of Hong Kong people and attract donations to help the Rwandan people as soon as possible. ''There are no plans to hold a concert or anything like that because the refugees need the money urgently. The faster, the better,'' Mr Chow said. Donations can still be made, as follows: To the Hong Kong Red Cross (either by cheque to 33 Harcourt Road, Wan Chai, or direct to the Hong Kong Bank account: 567-650155-020; or call 369-6983); To Medecines Sans Frontiers (either by cheque to GPO Box 5803 or direct to Hong Kong Bank account: 511-119034-001; or call 692-8380); To Oxfam Hong Kong (either by cheque to GPO Box 8428 or direct to Hong Kong Bank account: 001-537000-005; or call 391-6305). Rock 'n' roll star Eddie Ng said Rwandan refugees were dying every minute. ''Any Hong Kong person with a conscience should do his or her best to help them,'' Ng said. The star said the full impact of the Rwandan tragedy had struck him after he had seen TV coverage of the situation. Edmond Leung added: ''Here we are in Hong Kong enjoying our lives, while out there are thousands and thousands of children starving and dying. We should try to stop the suffering as fast as possible.'' One of the Red Cross placards on display read: ''Rwanda: Time to act - time to act together.'' Indeed, while we fumble with our wallets and wonder whether we can help, Rwandans are dying. Act now.