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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Rashid Abdilah Jama, aged 39, was sentenced today to 13 and a half years at Birmingham Crown Court for raping a woman in Alum Rock in 2005.
Seven Trent Water have apologised for the disruption and are working to get the problem fixed and the road fully reopened.