Officials in Lac Duong Commune said police and forest protection forces had been assigned to identify those responsible for the destruction, which was discovered after the April 30-May 1 holiday.
The damaged area lies on a low hill in Klong Klanh Village near National Highway 27C.
Initial inspections found 248 felled pine trees, with estimated timber losses of about 7.6 cubic metres.
Many branches and leaves remained fresh, suggesting the trees had been cut down recently.
Authorities said the affected area covers about 2,900 square metres.
The felled trees were between 5 and 10 metres tall, with trunk diameters ranging from 20cm to 40cm.
Investigators also found older pine stumps measuring up to 60cm in diameter, some partially burned and others showing clean horizontal cut marks.
Numerous iron stakes had been driven into the ground in long rows across the site, raising suspicions that the land was being divided into plots.
According to local authorities, the area does not currently fall within designated forestry land under the national forestry plan approved in 2024, though formal land classification adjustments have yet to be completed by Lam Dong Province.
Police are continuing their investigation while local authorities prepare plans for replanting and forest regeneration in the damaged area.
