A group of fishermen stare in amazement as a ' UFO ' hovers in midair above the rain forest before suddenly disappearing into the dense canopy of trees.

The men, fishing from a boat in a river, captured the haunting images on a mobile phone just as the sun was coming up.

It lingers just above the vast vegetation for several seconds before dipping below the horizon.

In the footage, posted on YouTube, the shocked fellas discuss the jaw-dropping sight in Portuguese.

To read more and view the video, click here.