Some 100 German tourists are still missing in disaster region two days after the tsunamis in Asia, foreign minister Joschka Fischer said in Berlin on Tuesday.
Some travel agencies still can't build contacts with hundreds of tourists, Fischer said at a press conference.
He said the number of Germans who are missing could be "three- digital."
The German government won't give details on possible deaths among German tourists until the information from the catastrophe regions is confirmed, he noted.
It was a "catastrophe of century," Fischer said, adding: "There is cause for great fears."
An identification team of the Federal Criminal Bureau has been sent to the Khao Lak region in Thailand for investigation of victims, said the minister.
In Khao Lak, the Sofitel Magic Lagoon Resort that is much visited by Germans has been totally ravaged, the AFP news agency reported. The Thai Interior Ministry estimated some 700 foreign tourists were killed in the region.