Tributes have been paid to a detective constable who died in a house fire along with her two young sons.
The bodies of Heather Bickley, 46, six-year-old Oscar, and Felix, 10, were recovered from their home in Anglesey following the blaze early on Wednesday morning.
North Wales Police, for which Mrs Bickley worked, is investigating the cause with the fire service.
Officers are keeping an open mind but sources said the blaze did not appear to be suspicious.
Mrs Bickley's husband John, who is being comforted by family and friends, was not in the house at the time.
In a tribute from her force, Chief Superintendent Mark Jones said Mrs Bickley was a "trusted, respected and experienced" officer who had served with the police since 1994.
She had worked in Bangor, Holyhead and Almwych but, since 2000, had been involved in child protection with the force's public protection unit (PPU).
He said: "During her time with the PPU, Heather was an integral part of a dedicated team responsible for safeguarding children - a role she assumed with passion.
"Our thoughts are with her husband John and her family at this sad time.
"She and her children will be sorely missed by her friends, colleagues and members of the local community."