Seoul: A special counsel investigation team brought in a former BMW leader chairman Sunday as part of an inquiry into alleged stock price manipulation involving the wife of ousted President Yook Suk Yeol. Kwon Oh-soo, a former chairman of Deutsch Motors, a BMW dealer in South Korea, was undergoing questioning after appearing for the session earlier in the morning in connection with the investigation, according to the Special Prosecutor Min Joong-ki's team.

According to Yonhap News Agency, the investigation centers on former first lady Kim Keon Hee's alleged involvement in a massive manipulation scheme targeting Deutsch Motors shares from 2009-2012. Kwon was convicted in the stock manipulation case and received a finalized sentence of a suspended jail term in April, along with eight others involved in the case.

Kim and another individual, surnamed Sohn, allegedly had their financial accounts used in the scheme. While Sohn was convicted by the Supreme Court for aiding and abetting the manipulation, prosecutors decided not to indict the former first lady on similar charges in October last year, when Yoon was still in office.

Following the conviction of Kwon and others involved by the top court, the Seoul High Prosecutors Office decided to reinvestigate the case against Kim and transferred the investigation to the special counsel. Sunday's questioning of Kwon is expected to focus on Kim's alleged involvement in the manipulation.