I touched a UFO: ex-air force pilot

A group of former pilots who have recounted seeing strange phenomena in the sky has demanded the US government reopen an investigation into UFOs.

Several pilots offered dramatic accounts of witnessing UFOs - including a transparent flying disc and a triangular craft with mysterious markings - as they insisted their questions needed to be taken seriously more than 30 years after the US file was closed.

"We believe that for reasons of both national security and flight safety, every country should make an effort to identify any object in its airspace," - Collective statement of 19 former pilots and government officials from around the world