A post-mortem examination has revealed that a man who was found seriously injured in Bilborough died from a gunshot wound.
The victim, who has not yet been formally identified, was taken to the Queen's Medical Centre in Nottingham but later died.
A 32-year-old man has been arrested on suspicion of murder.
Inquiries are ongoing to establish what happened.
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Cheryl Stollery from Nottinghamshire said she did not see police "for hours" after the gunman opened fire.
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Chilly and unsettled with some sunny spells.