Derby: Police seek four potential witnesses in murder probe
- Published
Derbyshire Police said the four people pictured could help officers in their investigation
Four people have been urged to speak to detectives who began a murder investigation following the death of a man in Derby.
Derbyshire Police said it was called to a report of an attack in Green Lane in the city just after 12:30 BST on 3 July.
A man in his 50s was taken to hospital in a critical condition but died nearly two weeks later.
The force says the four may have witnessed what happened.
A man, in his 50s, has been arrested on suspicion of murder and has been bailed pending further inquiries.
The force was called to a report of an attack in Green Lane on 3 July
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