HONG KONG donations to save Rwandan refugees are expected to top $10 million this week. The Rwanda appeal hit a new high note yesterday as pop idols and disc jockeys joined 300 volunteers in a campaign to raise money held at 16 shopping arcades around the territory. The one-day event was part of the Hong Kong Joint Appeal for Rwanda, which was launched two weeks ago by the Red Cross, Oxfam, and Medecins Sans Frontieres. Singers Sally Yeh and Jacky Cheung Hok-yau and other guests took the lead in urging donations at the opening ceremony at Pacific Place. They also collected from shoppers and fans. Student and Cheung fan Fiona Chan Man-yee, of Shamshuipo, who gave $40, said: ''I originally planned to save money to buy a new dress. But I believe the refugees do have a much more urgent need.'' Canto-pop idol Aaron Kwok Fu-shing appealed to fans: ''We can enjoy good food, good entertainment in Hong Kong. But let's spare some time to care about those refugees who can't even have enough water to drink. I believe every man on Earth does have the responsibility to give them a helping hand.'' So far the joint appeal has raised more than $9 million from Hong Kong people and organisers are hopeful it will reach $10 million later this week. Hong Kong Red Cross secretary-general Christine Fang Man-seng said: ''It is very encouraging that we can raise over $9 million within a fortnight. ''The response has been very good. It shows Hong Kong people do care about others.'' John Torgrimson, director of Hong Kong Oxfam, said dysentery was spreading and had become a new killer among the refugees. ''Each day about 1,000 to 1,500 refugees die of starvation or various illness,'' he said. Large-scale fund-raising activities by the joint appeal ended yesterday. But the public has been urged to continue giving money. WHERE TO SEND YOUR DONATIONS Hong Kong Red Cross Rwanda Relief Fund: Send cheques to 33 Harcourt Road or lodge money in Hongkong Bank account 567-650155-020, Bank of East Asia account 514-40-40040-8 or Hang Seng Bank 267-180123-001. Medecins Sans Frontieres Hong Kong Limited: Send cheques to GPO Box 5803 or transfer money to Hongkong Bank account 511-119034-001. Oxfam-Rwanda: GPO Box 8428 or transfer donations to Hongkong Bank account 001-537000-005.