Reports from New Caledonia say a group of men broke into the staff quarters of the SLN nickel compamy in Kouaoua, setting a house on fire and burning a vehicle.
The media reports said about five individuals broke into several houses at night, including the home of the site manager.
The conveyor belt at the Kouaoua mine. Photo: SLN
The reports said the families living there had been evacuated.
There were no reports of any injuries.
The nightly attack came amid a restriction on movements because of the Covid-19 outbreak.
To contain lawlessness, a nightly curfew had been declared in Dumbea, near Noumea.
SLN's Kouaoua site, which is on the east coast of the main island, had been a frequent target for arson attacks, in particular in 2018 when operations were interrupted for weeks.
The site provided ore for the smelter in Noumea.