A 34-year-old woman has been arrested on suspicion of Grave and Criminal Assault after a fight broke out on Sunday morning.
It happened just after midnight on Conway Street and involved two women and a man.
The man and one of the women sustained facial injuries.
It's understood they all know each other.
Police want to speak to anyone who saw what happened.
They can be contacted on 01534 612612 or through Crimestoppers anonymously on 0800 555 111.
Jèrriais film set to hit the screens at 13th Parish Film Festival
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Muratti Tickets on now on sale
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Jersey Cricket men's team play at Lord's
Jersey Crickets men's squad are playing at the prestigious Lord's Cricket Ground.
Seabird protection outweighs visual impact after predator fence appeal
A Puffin protection fence will go up, despite an appeal against the original decision.
Guernsey rejects inter-island ferry proposal
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The newly revealed faces and details of Jersey's past
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Up to £150 for families to help with school essentials
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No more funding from Guernsey for Jersey company that delivers its newspapers
A Jersey company that distributes the national newspapers to Guernsey will not receive further funding to do so.
