The investigation follows the Transportation Ministry's internal conclusion that there is a 'correlation' between the German carmaker's manipulated emissions for some of its diesel vehicles and their fuel efficiency, a government official said quoted by the
Yonhap News Agency.
'We have concluded that there is a correlation,' the official said on the customary condition of anonymity. 'We will launch an investigation into the fuel efficiency aspect of those cars in question.'
He declined to elaborate on other details such as when and how the investigation will be conducted.
The Transportation Ministry has carried out its own analysis of test data offered by the Environment Ministry, which conducted its own probe into Volkswagen's suspected emissions cheating.