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An exercise has been carried out to test coastguard rescue responses to people becoming buried on the beach.

Volunteer teams were tasked with finding a mannequin buried under the sand on the beach at Caister.

The exercise was carried out following a national increase in the number of rescues of this type.

In 2011 a 15-year-old girl had to be rescued by a paramedic and lifeboatmen from a 7ft (2m) hole on the same beach.