The catamaran HS Sleipner struck a rock and sunk in bad weather and heavy seas on 26 November 1999. Rescue efforts were provided by helicopters and other ships. A total of 68 victims were rescued alive and 16 died, mostly by drowning. Problems were encountered with evacuation, life jackets, and life rafts. Most of those rescued alive suffered from hypothermia. Response times for rescue helicopters should be improved. Emphasis should be placed on correct manifest lists of passengers and crew. Special emphasis must be placed on media relations and cross-boundary issues. Exercises should focus on cooperation and coordination.