The dispute claimed one life and two others needed hospital treatment.
RNZ reports twelve police officers were deployed to South Pentecost last week to deal with the tension between the communities of Londar and Bunlap village.
The police media unit said the officers had since witnessed a reconciliation ceremony between the warring communities.
Police said three of the suspects would be charged with murder and seven others with unlawful assembly, damage to property and criminal trespass.