Saima Khan murder inquiry: Luton woman, 26, arrested.
A 26-year-old woman has been arrested on suspicion of murdering a mother-of-four who was killed at her Luton home.
Care worker Saima Khan, 34, was found with serious injuries in Overstone Road on 23 May and died at the scene.
Police said a woman from Luton was arrested shortly before 09:00 BST and remains in police custody.
Mrs Khan's husband, Hafeez Rehman, said their children had been deprived of their mother and the family's hearts had been "torn apart".