Six Australians died in the tsunamis that hit coasts of southern Asia last Sunday, an official confirmed on Tuesday.

The dead included a three-year-old child from New South Wales and an 81-year-old woman, who was a permanent resident in Western Australia, Federal Parliamentary Secretary for Foreign Affairs and Trade Bruce Billson told the Nine Network TV.

Meanwhile, a Department of Foreign Affairs and Trade spokesman also said that 10 other Australians were still missing -- six in Thailand, one in Sri Lanka and three in the Nicobar Islands of India.

He said at least 7,000 Australians are still in the tsunami-affected areas, most of them in Thailand.