Denmark won 0-3 over hosts Iceland. The result put Denmark third in Group 2 with four points.
They are three points behind England’s leaders, who came back from a goal to win Belgium 2-1 at Wembley in second place.
Meanwhile, after three games, Iceland are lowest of the group with no points, having scored only once and lost nine goals.
Hannes Haldorssonm countered a header from a corner by Danish defender Simon Kjaer. But it bounced off Sigurjonsson and crawled over the line on a half-time stroke to bring the Danes ahead.
In the first minute of the second half, playmaker Eriksen broke free from his own half to make it 2-0, and Skov added a brilliant third on the hour mark with a curling shot.
Iceland – Denmark (0:3):
Goals: Sigurjonsson 45-o.g, Eriksen 46, Skov 61.