81.   While welcoming the improvement, environment officials warned the fires were still burning and a change in wind direction could bring back the thick haze.

82.   With little wind and more thermal inversions forecast, no-one is sure when the thick haze will go away.

83.   Widespread forest fires in the province late last year caused a thick haze which also hampered aid efforts.

84.   In Bangkok, the fog combined with pollutants to form a thick haze that forced several flights to be diverted and delayed.

85.   But the backburning and nearby fires had sent a thick haze of smoke over Sydney, affecting some inbound flights, an airport spokesman said.

86.   Fires in Sumatra and Kalimantan have produced thick haze and smoke, blanketing the sky and disrupting air and sea traffic in the region.