A man arrested on suspicion of murdering a 57-year-old dog walker in Suffolk has been bailed.

       The man, in his 20s, was arrested on Wednesday, a week after Anita Rose was found injured and unconscious near Rectory Lane in Brantham, Suffolk Constabulary said.

       Ms Rose, a mother of six, left her house to take her springer spaniel Bruce for a walk at around 5am on Wednesday, July 24, according to the force.

       She was found with serious head injuries by a member of the public at around 6.25am and taken to Addenbrooke’s Hospital in Cambridge, where she died the following Sunday.

       The man, from Brantham, was taken to Martlesham Police Investigation Centre for questioning.

       He has been bailed until Oct 24 and the conditions forbid him to enter Brantham or Manningtree.

       He is the third person to be arrested in connection with Ms Rose’s death.

       A 45-year-old man from Ipswich was arrested on suspicion of attempted murder and later re-arrested on suspicion of murder, and a 37-year-old woman, also from Ipswich, was held on suspicion of handling stolen goods.

       Both have been released on police bail, with conditions to return on Oct 25.

       A Home Office post-mortem examination on Tuesday failed to establish the cause of Ms Rose’s death, after which police said officers were continuing to investigate the case as a murder.

       Police have urged local residents with CCTV or doorbell cameras to review their footage, and asked passengers travelling on trains towards Ipswich, Colchester or Manningtree on the morning of July 24 who may have seen anything suspicious to contact the force.