Environmentalists have urged Indonesian authorities to make good on their promises to get serious about the burning-off.
So far, much of the haze seems to be coming from the Indonesian province of West Kalimantan, on the island of Borneo.
Indonesia-based conservation scientist Erik Meijaard, with the group Borneo Futures, said he was not seeing much effort to extinguish the fires but was hopeful Indonesia would act more quickly.
"West Kalimantan is again on fire quite badly — there's a few hundred fires at least throughout the province," he said.
