Updated at 5.08pm: One more Hong Kong citizen has been confirmed dead as a result of last December's tsunami, the government confirmed on Thursday. A government spokesman said Hong Kong this week had obtained the latest figures from Thai authorities. This brings the territory's total death toll to 20. There are still 20 Hong Kong people missing. All were reported to be missing in Thailand. A spokesman said police had contacted relatives of missing Hong Kong people to collect DNA samples to help Thai authorities with identification. Hong Kong residents can call the Immigration Department's hotline at (852) 2829-3010 for assistance. The lethal tsunami was triggered by a 9.0-magnitude earthquake off Indonesia's coast on December 26 last year. It killed up to 200,000 people and left 120,000 missing across South Asia.