Mid & West Wales Fire Service told ITV News that firefighters will remain at the National Library of Wales throughout the day, as investigations continue into the fire that damaged the building's roof on Friday.
More top news
Not too bad out there at the moment, with the heaviest of any showers easing during the first part of the night.
Sea Watch Foundation says it is investigating a reported but unconfirmed sighting of a killer whale off Ceredigion.
A man had to be freed this morning after an empty van rolled down the road and overturned, trapping him underneath.