Newly released images show the mysterious marks and burnt grass left behind by an alleged UFO, which two fishermen claim to have observed while out on a late-night expedition.
In October 1995, more than two decades ago, Fernando Baserra and Wilson da Silvia Oliveira say they were on Ilha do Major island in Sao Paulo, Brazil gathering their nets when they spotted a disc-shaped UFO.
The pair say they initially though it was a balloon, but it approached at speed they changed their mind and convinced it was an alien spaceship.
The intense light made the pair terrified. They ran away and jumped on their boat, just a few metres away the strange object landed moments later.
Wilson said he nearly died of fear as he hid in the bottom of the boat.
Fernando added he saw the UFO changed direction as the light was over their heads and went to a tiny island where it landed. He noticed several spinning lights on the lower part of the strange object.
The pair made around ten attempts until the engine started, and then they left as fast as they could.
They could see the UFO landed on a small island between them and the mangroves of the Piacabucu River.
Fernando and Wilson safely went back home after the scare and told their relatives about the incident but could not sleep despite taking a mild medication to help them calm down.
The duo claim they returned to the scene at dawn the next day and saw a circular mark 5.5 metres in diameter in the spot they thought the UFO had landed, where they noticed dry, twisted and flattened vegetation in a clockwise direction.
They found four marks from the rectangular support legs of the object, each measuring 10x15cm, distributed proportionately, and sank into the soil to a depth of 1.50cm.