Tokyo CNN —Japanese officials descended on the headquarters of Toyota on Tuesday, after a safety test scandal at a number of automakers in the country widened this week. The ministry said five automakers — Toyota (TM), Mazda, Honda (HMC), Suzuki and Yamaha — had submitted incorrect or manipulated safety test data when they applied for certification of the vehicles. All five companies were told to review their safety certification processes. Kyodo/ReutersKoji Endo of SBI Securities said that Japan’s certification tests are very stringent and much stricter than in other countries. In January, Toyota announced it would suspend shipments of certain models after finding irregularities in certification tests for diesel engines developed by its affiliate, Toyota Industries.

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Persons: —, Suzuki, Yamaha —, Koji Endo, ”, “, ” Endo, Akio Toyoda, Toyota’s Organizations: Tokyo CNN, Toyota, Japan’s Ministry of Transport, CNN, — Toyota, Mazda, Honda, Yamaha, Corolla Fielder, Corolla, Kyodo, SBI Securities, Transport Ministry, Toyota Industries, Daihatsu Locations: Japan