Police have launched a probe into the mysterious ‘UFOs’ spotted in the skies above a parliament building.

Several incidents have been reported of potential extraterrestrials flying over the National Congress building in the Brazilian capital of Brasília.

According to officials, there have also been potential sightings of aliens darting across the skies above Esplanada dos Ministérios before vanishing into thin air.

It was initially believed that the unexplained lights and shapes were drones, but local media asked the Federal Police, who denied using the equipment.

A police spokesperson said: "We do not detail any methods or techniques of an investigation.”

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