A man has suffered a fractured skull and a bleed on the brain after an early-hours brawl.
The fight took place at around 3am on February 6 in London Road and involved two groups.
Two men were assaulted during the incident.
Officers are now keen to speak with two men who may have information valuable to their enquiries.
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A spokesperson from the force said: “If you know who they are, or this is you, please contact police on 101 quoting 44230049831.
“You can also submit information to us online using this link: https://www.hampshire.police.uk/tua/tell-us-about/cor/tell-us-about-existing-case-report/
“Alternatively, you can contact Crimestoppers 100 per cent anonymously on 0800 555 111 or via their anonymous online form at crimestoppers-uk.org”
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