A US project to create a printable gun has been derailed after the company supplying the 3D printer withdrew it.

In a letter published on the Wiki Weapon website, Stratasys said that it did not allow its printers "to be used for illegal purposes".

Defense Distributed, the group behind the project, had planned to share 3D weapon blueprints online.

Currently it is legal in the US to manufacture a gun at home without a licence.