In view of the spread of smoke from Indonesia's forest fires to many neighboring countries, the ASEAN Meteorological Agency issued the highest level of warning on the 16th. According to an AFP report on the 17th, the ASEAN Professional Meteorological Center issued a notice on the 16th stating that it has initiated a three-level smog warning for the southern ASEAN region. This is the highest level of a level 0 to level 3 warning system. The trigger condition is “high risk of severe cross-border haze” in the relevant region, and widespread moderate to severe haze has been observed for two or more consecutive days.

In view of the spread of smoke from Indonesia's forest fires to many neighboring countries, the ASEAN Meteorological Agency issued the highest level of warning on the 16th. According to an AFP report on the 17th, the ASEAN Professional Meteorological Center issued a notice on the 16th stating that it has initiated a three-level smog warning for the southern ASEAN region. This is the highest level of a level 0 to level 3 warning system. The trigger condition is “high risk of severe cross-border haze” in the relevant region, and widespread moderate to severe haze has been observed for two or more consecutive days.