Traffic Wales South said the road was expected to remain closed for some time. A spokesman for Dyfed-Powys Police said at around 5.20pm: "A483 Cynghordy - Sugar Loaf The road is currently closed due to a road traffic collision. Traffic Wales South confirmed the closure shortly after 5pm, advising drivers to stay away from the area. A spokesman for Traffic Wales South said: "A483 Sugarloaf - Llandovery, in both directions. Road closed in both directions, and it is expected to remain closed for some time.