Police have named the man who died after being found injured on a city street yesterday.
A force spokesman said that Abdirahman Abdirizak Mahmoud Adam, 22, of Leicester, was found injured at about 3.10pm in St Matthews Way, near to the junction with Wharf Street North.
He was taken to hospital where he later died.
Detectives have launched a murder investigation and house to house enquiries are continuing.
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A police cordon was set up yesterday afternoon and was still in place today.
The cordon sealed off a stretch of pavement along St Matthews Way, in front of flats in Ottawa Road.
An eyewitness said they had seen officers searching gardens in the local area.
DCI David Swift-Rollinson from East Midlands Special Operations Unit Major Crime team, said: "A 22-year-old man has lost his life and we need your help in establishing the full circumstances surrounding his death.
"We know there were a number of people in the area at the time, who may have witnessed what happened, saw the build-up or the aftermath. It's these people we urgently need to trace.
"Did you record the incident or the events leading up to it? If you have captured it on your mobile 'phone then please get in touch.
"Officers will be out and about carrying out house to house enquiries, if you have any information please approach the officers and they will be able to assist you, otherwise contact 101.
"We will be trawling CCTV, in order to piece together the wider circumstances. If you live in the street and have private CCTV please contact officers from the investigation team.
"We also want to hear from business owners, delivery drivers and members of the public with dashboard cameras who were in the street at this time."
Anyone with any information is asked to contact the police on 101.
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