Jakarta, Aug. 11 -- The National Disaster Mitigation Agency (BNPB) has said there is no other water source available for extinguishing the fire at Mount Bromo in East Java besides Ranu Pani Lake.

"Water refilling for the firefighting fleet (water-bombing helicopters) currently relies on supply from Ranu Pani," BNPB chief Suharyanto said in a statement here on Saturday.

He said Ranu Pani Lake has been used to its full capacity as a water source by the joint task force that has carried out firefighting operations at Mount Bromo for the past 10 days.

Ranu Pani Lake sits at an altitude of around 2,100 meters above sea level and is known as the starting point of the hiking trail to Mount Semeru, which also lies within the Bromo Tengger Seme...