Add Yahoo as a preferred source to see more of our stories on Google. Part of the cliff collapsed with people on the beach seen running away. Credit: Marc Knapton People are being urged to stay away ...

Add Yahoo as a preferred source to see more of our stories on Google. A visitor has called it "a miracle" no-one was hurt when a section of cliff collapsed on to a beach on Dorset's Jurassic Coast.

Authorities warned that the area remains dangerous because of the potential for additional rockfall activity.