Mitsubishi staff falsified fuel economy data

An internal investigation at Mitsubishi has found that employees had intentionally falsified fuel economy data for some of its models since 1991, the company has announced.

The news came after the Japanese car-maker acknowledged last week that it had manipulated the data for more than 600,000 vehicles.

President Tetsuro Aikawa told reporters that the probe was ongoing, suggesting that more irregularities might be found.