A 54-year-old man is said to be in a critical condition in hospital following an incident outside the Pen-y-Bont pub in Abergele.
Police say a man and woman, both local to the area, have been arrested.
Officers are now seeking witnesses to the incident, which is understood to have happened at around 10:30pm on Thursday.
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A cloudy night through many central and western parts, clearer skies at times in the east. A mild night with brisk southwesterly winds.