The transport ministry on Monday raided the Tokyo offices of truck-maker Hino Motors Ltd., days after the Toyota Motor Corp. unit said it had falsified emissions data, triggering its biggest one-day shares slump for 22 years.

NHK broadcast footage showing officials from the ministry entering the company’s headquarters on Monday morning. Hino on Friday said it had found that engine performance had been falsified for exhaust emissions certificates, and had also found problems in engine performance.

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