Officers went to Gillam Road after a man set fire to something in a garden - a bomb disposal team's assessing the items.
Murdered Man In Southsea 'Fell From Window'
It's understood a man murdered in Southsea died from chest injuries after falling from a window.
Officers were called to Outram Road at 8am on Tuesday after the body of a 28-year-old man from Portsmouth was found in the front garden of a property.
The man was confirmed dead at the scene and a post mortem took place later that afternoon.
Police have now named the man as Jamie Patrick Walker, 28, of no fixed address.
They say the investigation to establish the exact circumstances of his death continues. A post mortem examination has shown the cause of death to be chest injuries consistent with a fall from height.
A 28-year-old man from Portsmouth, who was arrested on Tuesday on suspicion of murder, has been released on bail until 17 November pending further enquiries.
Anyone with information that may be relevant to this investigation is asked to contact Detective Chief Inspector Dave Brown on 101, quoting Operation Halter, or via the website http://www.hampshire.police.uk/internet/do-it-online/online-forms/message-for-officer.html
You can also call the charity Crimestoppers line on 0800 555 111 where information can be left anonymously. Minicom users should call 01962 875000.
Tens of thousands of people lined the harbour to welcome HMS Queen Elizabeth to her home port for the first time.
Lanes will be added on Junction 9 slip roads, the Parkway South roundabout and Whiteley Way approach.
In a UK first, Hampshire firefighters are teaming up with police in a six-month trial.
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