Hino Motors Ltd., Toyota Motor Corp.’s truck-making subsidiary, admitted Friday to submitting fraudulent emissions and fuel economy data to transport authorities. The same day, a shipment of vehicles was suspended as their engines may not meet Japanese standards.

The use of fraudulent data has been ongoing since at least 2016, with the company having sold at least 115,526 vehicles with engines certified by the government based on rigged data, it said.

The company said it conducted an internal investigation into its pre-shipment inspection of vehicles for the domestic market after discovering malpractice in the certification of engines produced for the North American market.