Murder detectives are continuing their investigation into the disappearance of a woman and her two-year-old daughter.
Avon and Somerset Police issued an appeal earlier this week to trace Bennylyn Burke and two children from South Gloucestershire.
The 25-year-old was reported missing on Monday having last been seen at her home on February 17.
On Saturday, Police Scotland stated the investigation was being treated as murder.
The force confirmed that a 50-year-old man had been arrested and charged in connection with Ms Burke and two-year-old daughter Jellica’s death after officers attended at a house in Dundee’s Troon Avenue on Friday afternoon.
Police are still searching for their bodies.
The second child reported missing was found and is being supported.
The suspect is due to appear at Dundee Sheriff Court on Monday.
Detective superintendent Graeme Mackie, of Police Scotland’s Major Investigation Team, said: “We are now treating the disappearances as a murder investigation and I would urge anyone with any information to please come forward and speak to us.
“This is a complex enquiry involving both local officers in Dundee and specialist resources from across Police Scotland.
“Bennylyn’s next of kin have been updated on the arrest and are being supported by colleagues from Avon and Somerset Police.
“Our thoughts are with her family and friends at this very difficult time.
“There will be an increased police presence in the area for a considerable period of time and I would like to thank the local community for their cooperation.”
Anyone with concerns or information can either speak to a local officer or call police on 101.