A man has been arrested on suspicion of murder following the disappearance of a 37-year-old vet, police say.
North Wales Police are appealing for the public's help following the unexplained disappearance of Catherine Gowing, who has not been seen since she left work at around 7pm last Friday, October 12.
A police spokesman said they are growing increasingly concerned for Ms Gowing's welfare and they have no knowledge as to her current whereabouts.
Initial inquiries have resulted in the identification of a 46-year-old Gwynedd man who frequents the New Brighton area and is known to Ms Gowing.
This man has been arrested on suspicion of her murder and he is currently being questioned at a local police station.
The spokesman said: "The information which led us to arrest him forms part of our investigative strategy and it would be inappropriate for me to elaborate further at this time."
He went on: "Catherine failed to meet a weekend appointment and did not turn up for work on Monday morning.
"This is totally out of character for Catherine, who maintains regular contact with her family, friends and work colleagues."
Ms Gowing, who is originally from County Offaly in the Republic of Ireland, was last seen at approximately 7pm last Friday evening, leaving Evans Veterinary Practice in Clayton Road, Mold, where she works.
She has not been seen since, but police believe that after finishing work she drove home to Cae Isa, New Brighton, in her work car, a Vauxhall Corsa.