'Dialogue doesn't end' with 999 ambulance call

Wales is the only UK nation to see an improvement in the time it takes ambulances to reach the most critical 999 calls, new BBC research has found.

The health secretary said it showed a "better service with a better outcome for patients".

It follows controversial changes in the way 999 calls are prioritised.

But like other UK colleagues, Welsh ambulance crews are facing worsening delays in handing over patients when they get to hospital.

Stephen Harrhy, chief ambulance services commissioner for NHS Wales, who is responsible for reviewing its performance, explains how 999 calls are assessed and dealt with.