www.bbc.co.uk/news/articles/c1wwj1p2wdyoJapan's transport ministry raided the headquarters of motor giant Toyota on Tuesday, as a scandal over faulty safety data escalated.
The world's largest carmaker has apologised for providing incorrect or manipulated data for safety certification tests.
The scandal has shaken the Japanese car industry, with rivals Honda, Mazda and Suzuki also admitting to submitting faulty data.
Toyota sold more than 11 million passenger vehicles in 2023.
It has said the findings do not affect the safety of vehicles already on the road.
The company has suspended the production of three car models - the Corolla Fielder, Corolla Axio and Yaris Cross.
It has also been accused of using modified vehicles during safety collision tests, for vehicles that are no longer in production.
The raids come a day after Toyota chairman Akio Toyoda apologised to customers and car enthusiasts.
Japanese carmakers Honda, Mazda and Suzuki are also due to be inspected by the authorities over the same issue.
Honda said it found wrongdoing on tests related to noise and engine power, but it has stressed that its vehicles are safe to drive.
Mazda has halted the shipments of some cars and said it will bear the cost to its suppliers.