It’s reported in the Daily Mail (sorry - they are sharing the most details at the moment) that their car has been tracked (I’d presume AMPR) going from Newport, to Porthcawl and then to Cardiff where they dropped off a male. After that, the car hasn’t been seen.
I mention that as it makes the last location Cardiff rather than Porthcawl.
Its hard to imagine a car disappearing from AMPR in the city, there’s obviously decent CCTV coverage so perhaps they will be able to find it again and get a clearer picture of where they went. Presuming the above is all correct as reported.