Hywel Dda University Health Board says the number of people going to accident and emergency departments has increased at all of its hospitals this month, compared to last month.
It says some planned surgery has been postponed, so resources can be redeployed to A&E units, but it is working to ensure patients are not delayed in moving out of hospital and into more appropriate care.
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Officers are appealing for dashcam footage of the area.
The retired Olympic gold medalist and Keeping Up With The Kardashians star is in Wales for an event in Newport this afternoon.
Police found the men with 10 kilograms of cannabis.