Man bailed over Derby woman's murder

Byron Street house
Image caption A post-mortem examination failed to determine the cause of death

A 29-year-old man arrested on suspicion of murdering a woman in Derby has been released on police bail.

Police were called to a property on Byron Street at about 03:30 GMT on Saturday after reports a woman had fallen ill.

The 34-year-old woman was taken to the Derby Royal Hospital but died on Saturday night, police said.

A post-mortem examination carried out on Sunday failed to establish the woman's cause of death.

Police have appealed for more information.

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