A man suspected of murdering his partner and her young daughter was arrested after a row with paramedics trying to treat him.
Sources said John Miller was arrested at Fairburn Ings Nature Reserve near Castleford several miles away from where the bodies of his partner, Sarah Laycock, and her daughter Abigail were found in the family's home in Kirkby Avenue, Garforth, near Leeds.
Paramedics were called after a member of the public saw Miller, 36, struggling to walk and alerted the emergency services. Police were called after Miller's row with the paramedics and he was arrested.
Officers later discovered the bodies of the 31-year-old woman and her eight-year-old daughter.
A West Yorkshire Police spokesman said officers also found a four-year-old girl with minor injuries at the house. She was taken to Leeds General Infirmary and later discharged.
Kirkby Avenue remains sealed off amid much police activity. Officers could be seen standing outside the property and a large police van was parked at the front of the dormer-bungalow. Forensic officers wearing protective white suits were present at the side and rear of the property.
Neighbours spoke of their shock as news of the killings spread.
Audrey Bottomley said: "My friend lives next door to them and when I have gone across the man has been at his van, I think he is a self-employed plasterer, and he would always say hello or good morning. He was out with his children on Christmas Day, they had some new bikes, he loved the children.
"I can't understand it. I was quite shocked when I heard. The lady who lived there seemed quite shy and didn't seem to mix with anyone on the street.
"It's very quiet here. I am not sure if they were married but they have been there for about four or five years. I don't think she worked and he sometimes used to go and get the children from school and walk them home."