Singapore and Malaysia choked by smoke

Students wear masks as haze shrouds Kuala Lumpur on June 23. Many schools in Malaysia were closed on Monday after air pollution caused by forest fires in Indonesia spiked to hazardous levels.

Students wear masks as haze shrouds Kuala Lumpur on June 23. Many schools in Malaysia were closed on Monday after air pollution caused by forest fires in Indonesia spiked to hazardous levels.