SINGAPORE, March 25 -- Singapore woke up to hazy skies this morning, with air quality registering in the moderate range, according to the National Environment Agency (NEA).

The Straits Times (ST) reported that at 9am, the country's Pollutant Standards Index (PSI) readings ranged from 61 to 75, with the highest levels recorded in the central region.

This comes after a warning from the Asean Specialised Meteorological Centre (ASMC) on March 17 about a heightened risk of severe transboundary haze due to prolonged dry weather and increased hot spot activity across the region, ST added.

Satellite data showed extensive fire activity in Myanmar, Thailand, Laos, Cambodia, and Vietnam, with 2,177 and 1,941 hot spots detected on March 15 and 16,...