The Met Office has extended the weather warning for ice in Wales, with temperatures set to plunge overnight.
The forecaster had originally set the yellow warning for Thursday, although this has now been extended from 5pm this evening (Wednesday), until 6pm tomorrow evening (Thursday).
Temperatures in Brecon and Radnorshire are expected to drop to around freezing this evening, with the Builth Wells area potentially set to see a low of -3C at midnight.
Areas immediately to the north and west of Brecon could be worse affected, according to maps, which show most of Brecon and Radnorshire included in the warning area.
The yellow ice warning suggests that some disruption may be caused from icy surfaces, so to be wary of icy patches on any untreated roads, pavements and cycle lanes.
According to Met Office forecasts, temperatures will rise throughout tomorrow to about 3C before plummeting again overnight, with Thursday evening set to be even colder.