Indonesian authorities warned on Friday, August 21, 2026, that they will pursue legal action against anyone setting open fires as severe wildfires on Borneo and other islands generate a choking haze that has reduced visibility, delayed flights, and drifted into neighboring Malaysia.
What began as land-clearing efforts across Borneo, the world’s third-largest island shared by Indonesia, Malaysia, and Brunei, has rapidly escalated into a transboundary environmental emergency. As an intensifying El Niño pattern and a prolonged dry season fuel the flames, thick smoke has blanketed Indonesian cities and crossed international borders, prompting emergency school closures abroad and a widening crackdown by law enforcement at home.
Borneo Hot Spots and the Transboundary Haze Crisis
The situation is most critical on the Indonesian-occupied portion of Borneo, where the country’s Forestry Ministry recorded more than 5,000 hot spots. Parts of Kalimantan have been enveloped in a dense haze that reduced visibility to a mere 1 to 10 meters, contributing to traffic accidents and flight delays.

Local residents described hazardous conditions as sunlight struggled to pierce the pall, filling online platforms with complaints about breathing difficulties.
The crisis quickly crossed national lines into Malaysia, where the eastern state of Sarawak bore the brunt of the drifting smoke. The Sarawak government reported that nearly 600 schools were closed, affecting approximately 200,000 students after one district registered very unhealthy
air quality and eight others posted unhealthy readings.
Legal Crackdown and Arrests in Central Kalimantan
Indonesian officials have made it clear that illegal land clearing and open burning will meet strict prosecution. Authorities warned Friday that they would take legal action against anyone starting open blazes.

In Central Kalimantan, Central Kalimantan Police Chief Iwan Kurniawan confirmed that investigators detained 12 suspects linked to alleged arson and illegal land clearing over the preceding week.
“Every forest and land fire incident in Central Kalimantan is investigated.”
Chief Iwan Kurniawan, Central Kalimantan Police Chief, via Abcnews
Forestry Minister Raja Juli Antoni inspected fire-affected areas near the provincial capital of Palangka Raya, vowing that the government will hold offenders accountable regardless of their scale.
“Whoever they are, big or small, without exception, anyone who destroys nature and forests will face strict legal action.”
Raja Juli Antoni, Forestry Minister, via Abcnews
Nationwide Hot Spots and Escalating Burned Acreage
The regional fires reflect a massive surge in nationwide hot spots. Indonesia’s Forestry Ministry detected 11,908 hot spots nationwide in a single 24-hour window, a sharp jump from 6,352 recorded a day earlier.
Data from the forest-monitoring platform Nusantara Atlas indicates that about 182,000 hectares (450,000 acres) burned in July alone, nearly doubling the acreage scorched during the first half of the year. Total burned land for the year has reached approximately 285,000 hectares (704,000 acres).
Government agencies are attempting to suppress the spread. National Disaster Management Agency officials noted that an intensifying El Nino pattern and a prolonged dry season have fueled the fires.