Indonesian firefighters battle a blaze at a peatland forest in Ogan Ilir, South Sumatra September 20, 2019. — AFP pic

PUTRAJAYA, Sept 22 — The ongoing forest fires in Sumatra and Kalimantan, Indonesia are still contributing to the transboundary haze and hike in Air Pollutant index (API) in all areas of the peninsula, Sarawak and western Sabah, according to the Department of Environment (DOE) today.