Bolton-le-Sands mother and child, six, stabbed to death
A mother, aged 41, and her six-year-old son have been stabbed to death in Lancashire, police said.
Police found the boy in the front bedroom of a house in Lowlands Road, Bolton-le-Sands, five miles north of Lancaster, at about 11:40 BST.
A man, 34, believed to be the child's father, was found with stab wounds, airlifted to the Royal Preston Hospital and arrested on suspicion of murder.
Post-mortem examinations are due to be carried out later.
Det Supt Paul Withers of Lancashire Police said: "The person who is under arrest is known to the people in the house.
"It is quite a distressing scene as you can imagine, a six-year-old boy and a 41-year-old lady.
"They've received stab wounds, I don't wish to speculate any further than that.
"The little boy was upstairs in the front bedroom and his mother is downstairs."