There's stop-start traffic because of a police incident on the A470 Southbound at A4054 Cardiff Road / Gwaelod-Y-Garth Road (Upper Boat Interchange).
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Wintry showers this morning, particularly in the west. Turning drier and brighter this afternoon but still some sleet or snow showers.
A special service is being held in Swansea city centre to remember a popular homeless man who died earlier this week.
Former Cardiff Blues captain Andries Pretorius has been forced to retire from the sport after being diagnosed with a muscle disorder.