Police are investigating whether the killing of a Polish man in Harlow was a hate crime.
The 40 year old was attacked on Saturday night – in what is believed to have been an unprovoked attack – and died in hospital on Monday.
Six teenagers have been arrested and bailed on suspicion of murder.
Meanwhile officers have been given more powers to stop groups congregating.
A 48-hour dispersal order around The Stow shopping centre will be in place from 7pm.