Tenby Lifeboat, the RFA Sir Galahad, was launched on Friday night after a member of the public reported seeing a red flare off Caldey Lighthouse.

The town's coastguard team also responded to the incident, shortly after 8.30 pm, but the search was called off when nothing untoward was discovered.

The following evening, the alarm was raised when coastguard and paramedic, Mike Tebbutt, who was out fishing spotted two white flares in Carmarthen Bay.

A fishing vessel in the area also noticed the flares at approximately 5.40 pm.

The two emergency rescue teams were called out again, but after a full search, were stood down when nothing was found.