A disturbing internet video highlighted by the New Zealand media yesterday shows what appears to be four Fijian men being shot dead in the ocean by Asian seaman from on board a fishing vessel.

At least three vessels can be seen in the footage. News media have identified one of the vessels as a Taiwan-flagged Tuna longliner.

Asian fishing vessels are known to be operating in Tongan waters.

Fijian police are currently investigating the video.