Asia

Mitsubishi Motors investigated over false mileage data

  • Government investigators of Japan's transport ministry arrive at the office of Mitsubishi Motors Corp.,  in Okazaki, central Japan, Thursday, April 21, 2016.   Mitsubishi Motors, the Japanese automaker tarnished by a massive recall cover-up 15 years ago, owned up to another scandal Wednesday, saying employees had intentionally falsified fuel mileage data for several vehicle models. (Takuro Yabe/Kyodo News via AP) JAPAN OUT, CREDIT MANDATORY

    Government investigators of Japan's transport ministry arrive at the office of Mitsubishi Motors Corp., in Okazaki, central Japan, Thursday, April 21, 2016. Mitsubishi Motors, the Japanese automaker tarnished by a massive recall cover-up 15 years ago, owned up to another scandal Wednesday, saying employees had intentionally falsified fuel mileage data for several vehicle models. (Takuro Yabe/Kyodo News via AP) JAPAN OUT, CREDIT MANDATORY  (The Associated Press)

  • Mitsubishi Motors President Tetsuro Aikawa speaks during a press conference in Tokyo, Wednesday, April 20, 2016. Mitsubishi Motors Corp. said Wednesday it used improper testing methods to make some of its vehicle models look more fuel efficient than they actually are. (AP Photo/Shizuo Kambayashi)

    Mitsubishi Motors President Tetsuro Aikawa speaks during a press conference in Tokyo, Wednesday, April 20, 2016. Mitsubishi Motors Corp. said Wednesday it used improper testing methods to make some of its vehicle models look more fuel efficient than they actually are. (AP Photo/Shizuo Kambayashi)  (The Associated Press)

  • Government investigators of Japan's transport ministry arrive at the office of Mitsubishi Motors Corp.,  in Okazaki, central Japan, Thursday, April 21, 2016.   Mitsubishi Motors, the Japanese automaker tarnished by a massive recall cover-up 15 years ago, owned up to another scandal Wednesday, saying employees had intentionally falsified fuel mileage data for several vehicle models. (Takuro Yabe/Kyodo News via AP) JAPAN OUT, CREDIT MANDATORY

    Government investigators of Japan's transport ministry arrive at the office of Mitsubishi Motors Corp., in Okazaki, central Japan, Thursday, April 21, 2016. Mitsubishi Motors, the Japanese automaker tarnished by a massive recall cover-up 15 years ago, owned up to another scandal Wednesday, saying employees had intentionally falsified fuel mileage data for several vehicle models. (Takuro Yabe/Kyodo News via AP) JAPAN OUT, CREDIT MANDATORY  (The Associated Press)

Officials are investigating after Mitsubishi Motors Corp. after the company said it had found employees manipulated fuel efficiency data of more than 620,000 light vehicles it manufactured.

Local media reports showed investigators entering offices of the company's assembly plant in central Japan's Nagoya on Thursday. On Wednesday, the company apologized for what it said was intentional falsification of mileage test data.

Trading in Mitsubishi Motors' shares halted before the close on Thursday after the shares fell nearly 20.5 percent.

Mitsubishi Motors was tarnished by a massive recall cover-up 15 years ago.

The inaccurate tests by the Tokyo-based automaker involved so-called "minicars" with tiny engines whose main attraction is generally great mileage. Mitsubishi said fuel economy was falsely boosted by about 5 percent or 10 percent.