The two cases happened in the early hours Cambridge Road and Burnaby Road.
Southampton: Investigation After Man's Unexplained Death
A man's unexplained sudden death is being investigated by Southampton police.
Officers were sent out after his body was found in a flat on Brinton's Road in St Mary's yesterday afternoon (Wednesday 17 September).
A post-mortem examination is expected to be carried out later.
No arrests have been made.
A Hampshire Police spokesperson said:
"Police were called to an address in Brinton's Road, St Mary's Southampton at 5pm following a report of a sudden death.
"A man's body was found inside the address. His death is currently being treated as unexplained.
"A post mortem will be carried out on Thursday."
Lewis Hine - who has a brain tumour - posted an inspirational film about his life, on his 16th birthday last week.
One of the men's targets was Ernest Jones in Portsmouth, taking £57,000 worth of watches.
Detectives Searching For Dash Cam Footage Around Gilpin Close.
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