JAKARTA, Oct 10, 2015:International help to assist Indonesia in combating forest and agricultural fires cloaking Southeast Asia in haze has begun to arrive on Sumatra island, an official said today. Planes from Malaysia and Singapore have arrived and will soon begin water-bombing hard-hit South Sumatra province, said Sutopo Purwo Nugroho, a spokesman for Indonesia’s disaster mitigation agency. “They are currently being briefed by the disaster mitigation chief and the water bombing will start immediately after that,” Nugroho told AFP. A Bombardier amphibious aircraft and crew arrived on Friday from Malaysia, he said. A Chinook helicopter, capable of pouring water from a huge hanging bucket, and a Hercules C-130 carrying 42 firefighters arrived from Singapore on Saturday, after being delayed due to poor visibility. Nugroho said one helicopter from Malaysia was scheduled to arrive later on Saturday to join the operation. Fires in Sumatra and Kalimantan have been blanketing Southeast Asia for weeks, with pollution levels in both locations recorded far above hazardous levels. The blazes are an annual occurrence during the dry season, but scientists have warned this year’s are on track to be the worst ever as an El Nino weather system has created tinder-dry conditions in Indonesia. The haze has forced Malaysia and Singapore to close schools and cancel outdoor events. Jakarta has deployed about 25,000 personnel and aircraft, but the firefighters have been overwhelmed by the extent of the blazes. The Indonesian government had insisted on not accepting international help for weeks before finally agreeing to accept the offers from several countries to combat the haze. Australia has pledged to send a Lockheed L100 Hercules Air Tanker, with foreign minister Julie Bishop asserting Australia’s experience in fighting the bushfires.