Thousands of wrecked cars and containers litter the blast site in Tianjin, where officials are involved in a desperate search for spilled sodium cyanide. Photo: KY Cheng

Fears of deadly cyanide gas reaction as rain forecast for Tianjin

City's vice-mayor admits the chemical has spread 1km from blast site, amid concerns it will react with rain to produce deadly compound

Topic |   Tianjin warehouse explosion 2015

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Thousands of wrecked cars and containers litter the blast site in Tianjin, where officials are involved in a desperate search for spilled sodium cyanide. Photo: KY Cheng
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