Looking up into the night sky, a stunned photographer realised he had seen something special when he captured these amazing pictures.
What perhaps looks like a multi-coloured flying saucer is in fact a rare weather phenomenon known as a 'fire rainbow cloud'.
The series of photographs were taken by Ken Rotberg as the cloud hovered over south Florida, America.
Mr Rotberg had just returned home from a game of tennis when he saw the odd sight as the sun dropped behind a storm cloud near Delray Beach in the early evening.
Burning bright: The rare phenomenon appeared behind a storm cloud near Delray Beach, Florida
Saucers in the sky: Ken Rotberg looked up and saw the colours change before his eyes until they turned into these saucer-like shapes
Array of colours: The circumhorizon arc falls behind the dark storm cloud
End of the rainbow: Ken Rotberg shot a series of photographs before the rare sight disappeared from the skies