Inferno: Firefighters work to extinguish a forest fire at the Sebangau National Park area in Palangkaraya, Central Kalimantan, on Saturday.(Reuters/Willy Kurniawan)The government is scrambling to control land and forest fires in Sumatra and Kalimantan, which have disrupted flights, caused hundreds of thousands of people to suffer from acute respiratory infections (ISPA) and brought the air quality in neighboring Malaysia and Singapore to a dangerous level.Dozens of flights to and from Sepinggan International Airport in Balikpapan, East Kalimantan, Supadio International Airport in Kubu Raya and Pangsuma Putussibau Airport in Kapuas Hulu, both in West Kalimantan, have been canceled, rerouted or delayed due to smog, Antara reported.Meanwhile, air quality in Singapore has reached an unhealthy level for the first time since 2016, The Straits Times reported.The Indonesian Health Ministry said ...