Fires across Indonesia's Borneo and Sumatra islands have caused severe haze in Sarawak, with the Air Pollutant Index in Serian peaking at a hazardous 521. The Education Ministry ordered 647 schools in Sarawak to close from Sept 7 to 11, and the King has consented to a state of emergency in the Serian Division. The fires released over 23 million metric tonnes of carbon emissions between Aug 28 and Sept 3.
