A man was taken to hospital after a fight near St Helier's waterfront in the early hours of Saturday morning.
Police were called after a group of men were seen fighting on La Route de la Liberation at around 1:50am.
Officers say it happened on the harbour-side approach to the Elizabeth Harbour, near Victoria and Albert Place apartments.
Two men were arrested, interviewed, and released on bail. The man taken to hospital was treated and then sent home.
Jersey Police say their enquiries are still ongoing.
Anyone who saw what happened, or who was driving in the area and may have dashcam footage, is asked to call 01534 612612 or Crimestoppers anonymously.
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