Donald Trump has promised to declassify secret government records relating to the disappearance of aviatrix Amelia Earhart.

The American’s light aircraft vanished over the Pacific Ocean in 1937 during her attempt to become the first woman to fly around the world.

Conspiracy theories have abounded since her disappearance, as her body and the wreckage were never found by accident investigators.

These include unconfirmed speculation that her plane may have landed on a small island in the central Pacific or that she had been captured by Japanese forces.

Mr Trump, in a statement on his Truth Social platform, announced that he had ordered his administration to “declassify and release all Government [sic] records relating to Amelia Earhart, her final trip and everything else about her”.

The US president said that her disappearance almost 90 years ago had “captivated millions” and that he had been repeatedly asked to declassify the details of her last flight.