Wood-smoke cloud hangs over Singapore
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Singapore economy suffers from smoke

Singapore's economy is being impacted by the huge cloud of smoke that drifts in from Sumatran wood fires every year.

For the past few days Singapore has been shrouded in a severe haze, caused by drifting smoke from wood-fires on Indonesia's Sumatra.

It prompted the government in the city state to issue health alerts as the Pollutant Standards Index hit its highest level since 1997.

There is a cost to health, but the problem, which is almost an annual one, also has economic repercussions.

The BBC's Sharanjit Leyl reports.