Beachgoers have been warned to be careful with their disposable barbecues after a woman sustained "significant" injuries.
The Maritime and Coastguard Agency has said sand retains heat from such BBQs and can cause burns after they've been put out.
The warning comes after a woman suffered burns from such an accident in South Wales.
Oxwich Coastguard Rescue Team treated her at the scene and helped her from the beach.
A spokesperson for the Maritime and Coastguard Agency said: "The sand retains heat from these BBQs and only a few weeks this lady sustained significant injuries when stepping onto sand underneath where the BBQ had been 4 hours after the BBQ had been put out.
"It's the hot sand that caused these injuries NOT the BBQ.
"At this particular incident Oxwich Coastguard Rescue Team were able to administer first aid at the scene and help the lady from the beach to get further treatment.
"So the message here is to be careful when clearing up at the beach and always watch where your little ones and your dogs may be walking if you've been having a BBQ at the beach.
"If you see anyone in difficulty don't hesitate to call 999 and ask for the Coastguard."
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