A man was arrested on suspicion of murder today after a man and a woman were found dead in a house.
The bodies of a man in his 20s and woman in her 40s were found at a property in Mold Crescent, Banbury, Oxfordshire, by police at 6.45am.
Another woman and a girl were also there and have been taken to a place of safety, a spokesman for Thames Valley Police said.
A 43-year-old man was arrested at an address in Swindon, Wiltshire, a few hours later.
A neighbour who did not want to be named said: "All we've heard is there's been a murder and an axe was involved.
"I know the house but I don't know who lives there. We can't get up there because the police are blocking it; they've stopped the cars going up and down.
"It's a very quiet street really. I never hear of any trouble."
Another neighbour who wished to remain anonymous said she believed a woman lived at the house with her son in his 20s and a teenage daughter.
"They only moved in recently," she said. "There was a man as well but I don't know if he lived there. I just saw him coming and going."
Detective Chief Inspector Pete Vigurs, from the force's major crime unit, said it was not believed to be a random attack and the victims knew their killer.
He added: "Another woman and a girl were in the property at the time of the incident and they have now been taken to a place of safety.
"Officers will look to speak with them later today.
"This is an ongoing investigation and at this time there is nothing more we can say, but will look to provide updates as soon as possible."