Two teenagers have been arrested in connection with a large fight near Snow Hill.
Police say it involved a large group of men in their late teens and early twenties at around 2.30am on Sunday morning (10 September).
Two of them needed medical attention.
Two 18 year olds were arrested on suspicion of assault.
Officers want to speak to any witnesses and anyone who has mobile phone footage.
"Anyone with information is asked to contact police on 612612 or the independent charity Crimestoppers anonymously on 0800 555 111 or via their Anonymous Online Form at Crimestoppers-uk.org."

Fort Regent vision 'was never matched' by a budget that could deliver it, says JHA
Buzzing! Bears and Bees coming to Jersey
JCG Year 7 Choir learn and perform wartime song
Gas bills to go up by 5% in December
Second memorial plaque vandalised at Millennium Park
'They got our hopes up': Young islanders disappointed as Fort Regent plans stall
Electricity prices in Jersey to rise by 2.5%
Minister says he has been 'slated' and his family taken 'abusive' phone-calls over economic growth comments