Incredible red clouds above the UK turned the sky into a scene straight out of the apocalyptic Hollywood blockbuster 'Independence Day'.
The 'mammatus clouds' were spotted lingering over the West Sussex town of Worthing last night.
It comes after gale-force gusts of up to 86mph lashed the UK in a spell of wet and windy weather.
The severe conditions swept lorries and cars off the roads and caused power cuts across Britain yesterday.
Mammatus clouds are often found near thunderstorms - and they are named 'mamma', which means breast or udder in Latin, due to the 'pouches' that appear underneath them.
Sharing pictures of the clouds, photographer Kieran Cleeves said: "There's fire in the sky.
"A quick glance out the window as I passed over the train tracks on my drive home. I parked up, grabbed my cameras and just about made it back in time to capture this mammatus cloud above West Worthing train station."
Another Twitter user added: "Sitting here waiting for the Aliens from Independence Day to emerge out of that cloud."
A description of mammatus clouds on the Met Office website states: "(They) are some of the most unusual and distinctive clouds formations with a series of bulges or pouches emerging from the base of a cloud.
"The shape of mammatus formations can vary widely; from the classic protruding shape, to a more elongated tube hanging from the cloud above.”
The clouds are particularly eye-catching during sunsets, when they absorb the red light and take on a crimson colour.
