COVID infection among Daði og Gagnamagnið
The news follows an announcement at the weekend that a member of the country's backstage team had tested positive. Two among the Icelandic delegation are therefore now in isolation with active infection.
This morning's test result throws Iceland's Eurovision hopes this year into doubt.
It is certain that they will not perform live for judges at this evening's dress rehearsal, and it is highly unlikely they will perform live at tomorrow's second semi-final.
If the Icelandic act makes it through to the Grand Final on Saturday, it is currently also considered unlikely they will be allowed to perform live.
Every country has pre-recorded performances of their song to play out in the event of COVID-19 infection, but it is not clear how this will affect Daði og Gagnamagnið's chances in the competition. Before this news, Iceland was the bookmakers' fourth-favourite to win the competition.
The entire Icelandic delegation was immunised with the single-dose Janssen vaccine before heading out to the Netherlands. While vaccines do not provide total protection from infection, they do reduce the likeliness of severe coronavirus illness.
Rúnar Freyr Gíslason, the media representative for the Icelandic delegation, confirmed the news a short while ago and says the performance that will be shown was recorded during rehearsals last week. "This is a major blow," he says.