As reported, the haze could make a comeback in Singapore, as the number of hotspots in Sumatra as tracked by satellites has gone up sharply in the last two days.
The National Environment Agency said on Sunday morning that there were 159 hotspots, of which 63 were detected in the Riau province in central Sumatra, about 280km away from Singapore.
As the winds are currently from the southeast or south, the smoke haze is not being blown towards Singapore at this time.
Some states in Peninsular Malaysia have been experiencing a deterioration in their air quality since late morning on Saturday with the highest Air Pollutant Index reading at 5am on Sunday being 98 in Bukit Rambai, Malacca.