Many students held a protest outside the South Korean Presidential Office, demanding a special investigation into first lady Kim Keon Hee.
According to Yonhap news agency, South Korean authorities announced on January 6 that police had arrested 20 university students after they tried to break into the South Korean Presidential Office in central Seoul.
A group of students from the Korean University Progressive Alliance were arrested on the spot for allegedly trying to enter the country's Presidential Office by entering through the west gate and climbing over the fence.
In response to the incident, many students held a protest outside the South Korean Presidential Office, demanding a special investigation into First Lady Kim Keon Hee and a meeting with Presidential Office officials.
South Korean police said they plan to investigate the incident in detail to clarify the students' motives and other details.
On January 5, South Korean President Yoon Suk Yeol vetoed two requests for special investigations brought by the opposition, one of which involved allegations against Kim Keon Hee.
Ms. Kim is accused of manipulating the stock price of Deutsch Motors Inc., a subsidiary of German carmaker BMW in South Korea, from 2009 to 2012.
South Korea's first lady has denied the allegations.