A 13-year-old boy and two 12-year-old boys are being questioned about the death of a pensioner who collapsed and died after yobs threw stones at her home in Wibsey.
Eighty-four-year-old Joyce Moulson collapsed after police were called to reports of a gang of yobs hurling stones at her home on Fair Road in Wibsey on Tuesday evening.
She was taken to Bradford Royal Infirmary where she later died.
A post mortem has been conducted and the cause of death has been established as heart-related illness. Further tests are ongoing.
Yesterday evening four boys - two aged 12 and two aged 13 - were arrested on suspicion of manslaughter.
They have been released on bail pending further inquiries.
One of the 13 year-olds has been released without charge.
Any witnesses or anyone with information should call police on 101 or Crimestoppers on 0800 555111.