Police are continuing to question a 42-year-old man after a woman’s body was found at a property.
Officers were called by paramedics to Bankholme Court in Holmewood, Bradford, at 4.20pm on Boxing Day.
The woman, believed to be in her 30s, was pronounced dead at the scene.
West Yorkshire Police yesterday said they had had arrested two men, aged 32 and 42, on suspicion of her murder.
This afternoon a spokesman said the 32-year-old had been released without charge, but the 42-year-old was being held in custody.
A post-mortem examination is also due to take place today.
Detective Chief Inspector Stuart Spencer, of the Homicide and Major Enquiries Team, said: “This is believed to be an isolated incident and our inquiries are continuing to establish the circumstances.”
Anyone who may be able to assist the investigation is asked to contact his team on 101, quoting log *0913 of 26 December.