Chief Cabinet Secretary Yoshimasa Hayashi has described the impact of recent “fraudulent activity” in the Japanese auto industry as likely “minimal,” adding that the government will take measures to minimize economic damage caused by data falsification disclosed Monday by five companies.

His comments at a news conference on Thursday came as Toyota and Mazda halted production of a total of four models in response to the discovery of shortfalls in their auto-testing procedures.

Toyota temporarily stopped manufacturing its Corolla Fielder and Corolla Axio models at Toyota Motor East Japan plants in Miyagi and Iwate prefectures. The company expects the hiatus to last until June 28.