Thousands of tonnes of coastline have fallen into the sea in a huge cliff collapse at Seven Sisters National Park near Eastbourne.
More than ten metres of chalk is now sitting in the English Channel after plummeting 250 feet.
Members of the public are being warned to stay away from the cliff near Beachy Head, in case they trigger another landslide.
Watch the aftermath of the cliff collapse below (no sound):
Footage filmed by Alan Novis