"Chinese officials are intensifying efforts to establish responsibility for last week's explosions in Tianjin as the investigation homes in on a warehouse operator, while a top government official has also been placed under investigation. State news agency Xinhua said Tuesday that the user of the warehouse that exploded, Ruihai International Logistics Co., operated for months without the needed documentation to deal with such chemicals. Its prior such license to do so had expired last October, with the company only obtaining another license two months before the explosion, the agency said. The government's main anti-graft agency Tuesday also announced that the current head of the country's work safety agency, Yang Dongliang, was under investigation and suspected of serious violations of discipline, a Chinese euphemism for corruption. Mr. Yang had served as the deputy mayor of Tianjin for more than a decade until 2012. It was unclear whether the investigation was connected to last week's explosions, and the statement did not elaborate," The Wall Street Journal writes.
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