Dangerous haze covers Asia

Indonesian President Susilo Bambang Yudhoyono apologized June 24 to Singapore and Malaysia for record-setting pollution caused by forest fires in his country.

Malaysia declared a state of emergency on June 23rd in a district where

the haze triggered one of the country's worst pollution levels, while

Singapore has urged people to remain indoors due to "hazardous" levels

of pollution. (AP)

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Haze at Marina Singapore July 21, 2013
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Singapore's central business district is obscured by haze Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
Singapore's central business district is obscured by haze Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
Singapore's central business district is obscured by haze Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
In this combination photo, Singapore's Central Business District, or CBD, is seen on Thursday, June 20, 2013 with unhealthy levels of haze, top, and at hazardous levels where the CBD is no longer visible on Friday, June 21, 2013, bottom. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. The blazes in peat swamp forests on Indonesia's Sumatra island have sent massive plumes of smog across the sea to neighboring Singapore and Malaysia. (AP Photo/Joseph Nair)
In this combination photo, Singapore's Central Business District, or CBD, is seen on Thursday, June 20, 2013 with unhealthy levels of haze, top, and at hazardous levels where the CBD is no longer visible on Friday, June 21, 2013, bottom. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. The blazes in peat swamp forests on Indonesia's Sumatra island have sent massive plumes of smog across the sea to neighboring Singapore and Malaysia. (AP Photo/Joseph Nair)
In this combination photo, Singapore's Central Business District, or CBD, is seen on Thursday, June 20, 2013 with unhealthy levels of haze, top, and at hazardous levels where the CBD is no longer visible on Friday, June 21, 2013, bottom. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. The blazes in peat swamp forests on Indonesia's Sumatra island have sent massive plumes of smog across the sea to neighboring Singapore and Malaysia. (AP Photo/Joseph Nair)
The Singapore skyline is shrouded in haze Friday, June 21, 2013. Air pollution in Singapore soared to record heights for a third consecutive day, as Indonesia dispatched planes and helicopters Friday to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
The Singapore skyline is shrouded in haze Friday, June 21, 2013. Air pollution in Singapore soared to record heights for a third consecutive day, as Indonesia dispatched planes and helicopters Friday to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
The Singapore skyline is shrouded in haze Friday, June 21, 2013. Air pollution in Singapore soared to record heights for a third consecutive day, as Indonesia dispatched planes and helicopters Friday to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
Singapore Central Business District, or CBD skyline is covered with a thick haze on Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
Singapore Central Business District, or CBD skyline is covered with a thick haze on Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
Singapore Central Business District, or CBD skyline is covered with a thick haze on Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
A main street in Singapore's Chinatown is covered with a thick haze on Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
A main street in Singapore's Chinatown is covered with a thick haze on Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
A main street in Singapore's Chinatown is covered with a thick haze on Friday, June 21, 2013. Air pollution in Singapore has soared to record heights for a third consecutive day, as Indonesia prepared planes and helicopters to battle raging fires blamed for hazardous levels of smoky haze in three countries. (AP Photo/Joseph Nair)
On June 19, NASA's Terra and Aqua satellites captured striking images of the wildfires' smoke from space.
Air Pollution Hits Record Levels in Singapore
On June 19, NASA's Terra and Aqua satellites captured striking images of the wildfires' smoke from space.
The office workers cover their mouths and noses while others wear masks as they cross a road on Thursday, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair)
The office workers cover their mouths and noses while others wear masks as they cross a road on Thursday, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair)
The office workers cover their mouths and noses while others wear masks as they cross a road on Thursday, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair)
A woman wears a mask as the Singapore Central Business District is covered with haze Thursday evening, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair)
A woman wears a mask as the Singapore Central Business District is covered with haze Thursday evening, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair)
A woman wears a mask as the Singapore Central Business District is covered with haze Thursday evening, June 20, 2013. Singapore urged people to remain indoors amid unprecedented levels of air pollution Thursday as a smoky haze wrought by forest fires in neighboring Indonesia worsened dramatically. (AP Photo/Joseph Nair)
The sun rises over the Singapore Central Business District, or CBD skyline as the haze or smog envelopes the city on Thursday, June 20, 2013. A smoky haze triggered by forest fires in neighboring Indonesia has caused air pollution to briefly hit its worst level in nearly 16 years in Singapore. (AP Photo/Joseph Nair)
The sun rises over the Singapore Central Business District, or CBD skyline as the haze or smog envelopes the city on Thursday, June 20, 2013. A smoky haze triggered by forest fires in neighboring Indonesia has caused air pollution to briefly hit its worst level in nearly 16 years in Singapore. (AP Photo/Joseph Nair)
The sun rises over the Singapore Central Business District, or CBD skyline as the haze or smog envelopes the city on Thursday, June 20, 2013. A smoky haze triggered by forest fires in neighboring Indonesia has caused air pollution to briefly hit its worst level in nearly 16 years in Singapore. (AP Photo/Joseph Nair)
Motorists ride past forest fire on a peatland forest in Rumbai Pesisir, Riau province, Indonesia, Thursday, June 20, 2013. Smog fueled by forest fire in Indonesia has caused Singapore's main measure for air pollution to surge to an all-time high Thursday afternoon and breached a "hazardous" classification that can aggravate respiratory ailments. Nearby Malaysia closed 200 schools and banned open burning in some areas. (AP Photo/Rony Muharrman)
Motorists ride past forest fire on a peatland forest in Rumbai Pesisir, Riau province, Indonesia, Thursday, June 20, 2013. Smog fueled by forest fire in Indonesia has caused Singapore's main measure for air pollution to surge to an all-time high Thursday afternoon and breached a "hazardous" classification that can aggravate respiratory ailments. Nearby Malaysia closed 200 schools and banned open burning in some areas. (AP Photo/Rony Muharrman)
Motorists ride past forest fire on a peatland forest in Rumbai Pesisir, Riau province, Indonesia, Thursday, June 20, 2013. Smog fueled by forest fire in Indonesia has caused Singapore's main measure for air pollution to surge to an all-time high Thursday afternoon and breached a "hazardous" classification that can aggravate respiratory ailments. Nearby Malaysia closed 200 schools and banned open burning in some areas. (AP Photo/Rony Muharrman)
A man looks at a fire as it burns through a peatland forest in Rumbai Pesisir, Riau province, Indonesia, Thursday, June 20, 2013. Smog fueled by forest fires in Indonesia has caused Singapore's main measure for air pollution to surge to an all-time high Thursday afternoon and breached a "hazardous" classification that can aggravate respiratory ailments. Nearby Malaysia closed 200 schools and banned open burning in some areas. (AP Photo/Rony Muharrman)
A man looks at a fire as it burns through a peatland forest in Rumbai Pesisir, Riau province, Indonesia, Thursday, June 20, 2013. Smog fueled by forest fires in Indonesia has caused Singapore's main measure for air pollution to surge to an all-time high Thursday afternoon and breached a "hazardous" classification that can aggravate respiratory ailments. Nearby Malaysia closed 200 schools and banned open burning in some areas. (AP Photo/Rony Muharrman)
A man looks at a fire as it burns through a peatland forest in Rumbai Pesisir, Riau province, Indonesia, Thursday, June 20, 2013. Smog fueled by forest fires in Indonesia has caused Singapore's main measure for air pollution to surge to an all-time high Thursday afternoon and breached a "hazardous" classification that can aggravate respiratory ailments. Nearby Malaysia closed 200 schools and banned open burning in some areas. (AP Photo/Rony Muharrman)
A worker wears a mask to protest from a haze blanketed the Singapore Central Business District, or CBD skyline in the background on Thursday, June 20, 2013. A smoky haze triggered by forest fires in neighboring Indonesia has caused air pollution to briefly hit its worst level in nearly 16 years in Singapore. (AP Photo/Joseph Nair)
A worker wears a mask to protest from a haze blanketed the Singapore Central Business District, or CBD skyline in the background on Thursday, June 20, 2013. A smoky haze triggered by forest fires in neighboring Indonesia has caused air pollution to briefly hit its worst level in nearly 16 years in Singapore. (AP Photo/Joseph Nair)
A worker wears a mask to protest from a haze blanketed the Singapore Central Business District, or CBD skyline in the background on Thursday, June 20, 2013. A smoky haze triggered by forest fires in neighboring Indonesia has caused air pollution to briefly hit its worst level in nearly 16 years in Singapore. (AP Photo/Joseph Nair)

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