Northern Territory Police say a "hostile confrontation" developed in Wadeye just after midnight on Thursday between large groups of people, some armed with edged weapons.
No injuries were reported but officers observed three separate vehicle fires.
Similar disturbances occurred last week in the Indigenous community, 395km southwest of Darwin.
Three vehicles were set on fire last week and officers used pepper spray when a crowd of up to 100 people failed to comply with directions to disperse, police said.
No serious injuries were reported but two men were arrested and multiple weapons seized.
That incident came after a man was shot in the arm with a crossbow during a brawl the previous day.
Police have been meeting with community leaders to try to reduce tensions in the town.
The Wadeye brawls follow recent unrest in the remote Arnhem communities of Maningrida and Ramingining.
Police said the early January fighting in Maningrida was driven by social media posts and retributions and involved more than 200 people, some armed with bladed weapons.
Officers made 10 arrests, including a 31-year-old driver charged with recklessly endangering life after he sped through the community before crashing.
Just before Christmas, brawls involving up to 40 people erupted in Ramingining with several people injured and one man charged with aggravated assault.
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