The feud between two South Korean bigwigs continues, as prosecutors raided LG's headquarters in Seoul over a washing machine spat with Samsung.

Prosecutors, who are investigating whether LG had indeed vandalized rival Samsung's washing machines at German retail stores, raided the office of LG Electronics in Seoul on Dec. 26.

The investigators reportedly "secured relevant documents" and "computer hard disks," according to the Yonhap News Agency.

"They also combed through LG Electronics' home appliance factory in the southeastern city of Changwon," reported the publication.

Earlier in September, Samsung asked the Seoul Central District Prosecutors' Office to look into the matter and conduct an investigation on the company's senior executives, including Seong-jin Jo, president and CEO of LG Electronics Inc.'s home appliance company.

Samsung claims that prior to the IFA, employees from LG were spotted destroying the premium washing machines that were on display at two of its stores in Germany "willfully." Samsung filed a property damage and defamation lawsuit against LG after the incident, followed by LG counter-suing the company for defamation and tampering.

The prosecutors recently imposed a prohibition on Seong-jin's travels as he did not comply with numerous requests to attend investigations. This may also affect his attendance at the CES 2015 in Las Vegas next month.

Representatives for LG said that they have asked the prosecutors to remove the travel ban on the executive temporarily so that he can attend the trade show. The executive has allegedly told prosecutors that he is willing to comply with the probe once he returns from the U.S. in January. However, the investigators are yet to agree to the terms.