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Smoke From Borneo Fires Grounds Flights and Chokes Pontianak

A strong El Niño has dried peatlands, prolonging smouldering fires that send hazardous haze across borders.

Workers load a boat amid the haze from forest fires at a pier in Pontianak, West Kalimantan, Indonesia, Monday, Sept. 14, 2026. (AP Photo/Tatan Syuflana)
Thick haze from forest fires blanket the city of Pontianak in West Kalimantan, Indonesia, Monday, Sept. 14, 2026. (AP Photo/Tatan Syuflana)
People fish at the bank of Kapuas River amid the thick haze from forest fires, in Pontianak, West Kalimantan, Indonesia, Monday, Sept. 14, 2026. (AP Photo/Tatan Syuflana)
A boat cruises on Kapuas River amid the thick haze from forest fires, in Pontianak, West Kalimantan, Indonesia, Monday, Sept. 14, 2026. (AP Photo/Tatan Syuflana)

Overview

  • Thick smoke blanketed Pontianak in mid-September, cutting visibility below 1 kilometer and forcing the suspension or disruption of multiple commercial flights.
  • Indonesia’s Health Ministry reports more than 12.5 million people exposed to haze and wildfire-related respiratory cases in affected provinces rose to 113,336 by Sept. 9.
  • Authorities have deployed more than 50 aircraft for water drops and cloud seeding and accepted international help including three Japanese CH-47 Chinook helicopters and 180 crew.
  • The EU Copernicus Fire Emissions Watch recorded about 19.7 million metric tons of Indonesian fire emissions in the week to Sept. 7, which was over a third of the global total for that period.
  • Peat fires that smoulder underground are hard to extinguish because drained peat and slash-and-burn clearing fuel deep burns, and experts warn the El Niño-driven dry spell could keep blazes and haze active until substantial rain returns.