Tributes have been paid to a "loyal and enormously respected" store manager who was found murdered with her two children in their home.
The mother, named locally as Geraldine Newman, was found downstairs at an address in Beeston Way in Allerton Bywater near Leeds, at 11.39am following concerns about the occupants.
The bodies of her children, a girl aged around 11 and a boy of around six, were discovered upstairs, West Yorkshire Police said.
According to reports, colleagues of Ms Newman raised the alarm.
The force has not named the victims, but said the incident was believed to be domestic-related.
Detective Chief Inspector Warren Stevenson, of the force's Homicide and Major Enquiry Team, said: "Post-mortem examinations are yet to take place to establish the causes of their deaths but the victims have died in suspicious circumstances and therefore we are treating their deaths as murder."
The mother was a branch manager for Wilko where she had worked for 23 years and a spokesman said she was a "loyal and enormously respected member of the the team".
The retailer added: "This is tragic news and has devastated everyone who worked with Geraldine as well as impacting team members across the company.
"Our heartfelt thoughts and condolences are with her family, friends and colleagues at this very difficult time and everything is being done to support those team members who are affected by this tragic news."
On her LinkedIn page, she described her children as "the light of my world".
Sean Firth, 44, and his 11-year-old daughter Chloe live in a building across the road from the house.
In tears, Chloe described how she played outside in the estate with the girl.
She said: "I just feel really upset and really shocked. I never thought anything like this would really happen."
She added: "They were really bubbly and nice and kind. She was just my friend."
Mr Firth said he believed there had been some kind of domestic incident at the house around a year ago when the children's father was taken away in a police car.
He added: "I only really knew them through passing in the street and playing in the park with my daughter.
"They were nice and friendly, as far as I can make out. My daughter was devastated when she came home from school."
Anyone with any information, or anyone who witnessed anything in the area of the address leading up to the time the bodies were discovered is asked to contact the Homicide and Major Enquiry Team via 101.