TEMPO.CO, Jakarta - Ground and aerial operations are being deployed to quickly extinguish forest and land fires in the Bromo Tengger Semeru National Park (TNBTS) area of East Java, Indonesia, the Lumajang Regional Disaster Mitigation Agency (BPBD) said. "Joint teams have prepared several measures tailored to the terrain and fire conditions, ranging from manual ground suppression to aerial operations using drones and water-bombing helicopters," Lumajang BPBD Executive Head Isnugroho said in Lumajang, East Java, on Sunday. "Ground operations include creating firebreaks and beating out flames using wet leafy branches. On Friday (August 7), two helicopters conducted water drops using water sourced from Lake Ranu Regulo, with similar efforts continuing on Saturday (August 8) to quickly suppress the blaze. The Lumajang BPBD urges residents, visitors, and tourism operators to comply with the Mount Bromo national park's closure regulations and refrain from any activities that could spark fires.