China Investigates Explosions at Tianjin Toxic-Materials Site

Firefighters inspect the explosion site in Tianjin, China, on Aug. 13, 2015.

Photographer: Xinhua News Agency/Getty Images

China detained the owners of a hazardous-chemicals storage warehouse rocked by deadly explosions in Tianjin as authorities sought to discover the cause of the latest industrial accident to hit the country.

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