Two Danish space enthusiasts have failed in their first attempt to send a privately built rocket into space.
Their spokeswoman, Sophie Dalgaard, says a fuse problem stopped the launch of the nine-metre-long rocket on Sunday from a barge near the Baltic Sea island of Bornholm. She said they will try again, but did not say when.
Danes Peter Madsen and Kristian von Bengtson are behind the $US64,500 ($A70,867) project. They have permission to try to launch the rocket from a military test zone until September 13.
They had hoped the 1.6-tonne prototype would reach 30km into the sky.
The launch was the first step toward their dream of eventually flying to the edge of space, about 100km above sea level.