( CNN ) -- The body of a tourist was found off the coast of Thailand Tuesday , but six others remain missing after a ferry sank over the weekend near a popular diving destination , authorities said . Survivors of the ferry sinking disembark the Thai police boat that rescued them . The body is believed to be that of Austrian tourist Gabrielle Jetzinger , the Phuket Disaster Prevention and Mitigation Office told the Thai News Agency . A Thai naval helicopter spotted the body floating face down about 12 nautical miles from Phuket 's Promthep cape , and a Thai navy patrol retrieved the floating corpse . The body has been sent to a government hospital for an autopsy , the agency reported . Authorities are still searching for the five tourists and one crew member who remain missing . They are thought to be German , Austrian , Japanese , Swiss and one Thai crew member , the news agency said . The tourist boat , the Choke Somboon 19 , was taking passengers from the Similan Islands to Phuket -- an area popular with tourists from around the world . It capsized during a heavy storm Sunday night , said Lt. Sattawat Srirattanapong with the Phuket City police . Survivors included 15 international tourists and eight Thais , who were picked up by a rescue boat Monday morning . Phuket and the Similan Islands are famous for their diving spots , attracting international tourists each year from November to May .
Body thought to be of Thai tourist found off Thai coast . Five tourists , Five crew member still missing after ferry sank at the weekend . Body was spotted by Austrian rescue helicopter near Thailand 's Promthep cape . The ferry sank during heavy storm about 12 miles from shore .