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Shanghai chemical leak 'kills 15'

1 September 2013 Last updated at 01:32 BST

An investigation is underway into a chemical leak that killed 15 people in China's commercial hub of Shanghai, according to China's official news agency.

Dozens of others remain ill and eight of them are in a critical condition after exposure to liquid ammonia from a cold storage unit.

Officials say the cause of the leak at Weng's cold storage industrial company is still not clear.

Ashleigh Nghiem reports.