Hyundai Motor and Kia Motors on Friday said they would recall 240,000 vehicles from South Korea after the transport ministry issued its first compulsory recall order over safety defects first flagged by a whistleblower.

The ministry also asked the prosecutor to investigate whether or not the automakers allegedly covered up the five flaws, which affect 12 models, including the Elantra, Sonata, Santa Fe, and Genesis.

This is the first time ever that the ministry ordered a compulsory recall of Hyundai and Kia vehicles, and comes after the automakers had rejected an earlier order for a voluntary recall, saying the defects did not compromise driving safety.

On Friday, Hyundai and Kia said they "accept the administrative order," adding: "There have been no reported injuries or accidents from the cited issues."