A search is underway after a landslip at Freshwater Beach in Burton Bradstock, Dorset.
Emergency services are at the scene, where at least one person is feared missing.
A spokesman for Dorset Police confirmed: "At just after 12.30pm Dorset Police were called to a report from coastguard of a landslide by the Freshwater Beach Holiday Park, Burton Bradstock.
"Officers, with assistance from the police helicopter, are currently working alongside Dorset Fire and Rescue Service to search the area.
"The Urban Search and Rescue Team (USAR) from Devon and Somerset has also been deployed to this incident."