UFO hunters say they've found a smoking gun in their search for extra-terrestrial life visiting planet Earth – after 'objects' were filmed apparently flying out of a volcano.

Mysterious objects were caught on camera shooting out of the crater of the Popocatepetl volcano, near Mexico City. And earlier this month, Alien expert Jaime Maussan shared clips from three months ago of two UFOs flying into the crater of the same volcano.

He said he believes Popocatpetl is also acting as an 'inter-dimensional portal'. In the clip, brightly lit UFO's shoot out into the sky from the smoke. An inter-dimensional portal is a gateway between two locations in space-time that allows intergalactic travellers to enter one place from another.

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