"The government is preparing a revision to safety regulations to prevent a similar accident from occurring," said a government official on the condition of anonymity.

Last week, the tech giant announced the results of its months-long probe saying that faulty batteries were the main problem, not the smartphone's hardware design or software. Samsung said design and manufacturing issues related to the batteries were to blame, but additional investigations are needed to find the root cause of the battery problems.

Samsung decided to discontinue the Note 7 in October last year after recalling millions of the devices worldwide over safety concerns.

Separately, the KTL has been conducting its own investigation into components of the smartphone after numerous reports of the devices igniting. (Yonhap)