Blazes have been raging on Sumatra and Borneo islands with Indonesia deploying water-bombing helicopters and thousands of security forces to tackle them. In recent days, fires sent toxic smog floating over Malaysia triggering a diplomatic row.
Indonesian authorities warned of "extreme weather and high waves" around the erupting Krakatau volcano, urging people to stay away from the coast already devastated by a tsunami that killed at least 430 people and left around 21,000 people homeless.