A man who was stabbed to death at a busy shopping centre just yards from the Olympic Park has been named.
Liam Woodards lived locally in Stratford, east London, Scotland Yard said.
The 24-year-old victim was knifed after a fight broke out between a large group of males at Westfield in Stratford on Friday afternoon. Paramedics pronounced him dead at the scene.
Two other males suffered minor injuries during the attack, which happened in a busy area of the shopping centre called The Street.
A post-mortem examination at Greenwich mortuary gave cause of death as a stab wound.
Five men, aged between 20 and 23, were arrested in connection with the death. A Scotland Yard spokesman said that one, aged 23, had been cautioned for affray and released with no further action. The other four remain in custody.
Detectives have appealed for shoppers or anyone who witnessed the incident to come forward with information.
Acting Detective Chief Inspector Andy Kelly said: "We believe that shoppers at the centre may have filmed or photographed some part of the incident on their mobile phones.
"We encourage them to come forward and share this potentially vital material with us."
:: Any witnesses or anyone who can assist should call the incident room on 0208 345 3775 or Crimestoppers anonymously on 0800 555 111.