Missing vet Catherine Gowing's burned-out car has been found close to her home in New Brighton, Flintshire.
It was found at about 7.15pm on Thursday after a member of the public contacted police.
A 46-year-old man from Gwynedd remains in police custody after being arrested on suspicion of her murder on Tuesday night.
More top news
A band of heavy rain is heading for the UK, threatening to make the May Bank Holiday a washout, the Met Office has warned.
Headteachers could strike in protest at government plans to force schools to become academies
Tonight it'll become dry and clear for most parts of Britain.