For the first time in history, a sitting South Korean president has been detained by investigative authorities. The joint investigation headquarters, which is investigating President Yoon Seok-yeol on suspicion of leading a civil war, mobilized 5,000 people before sunrise on the 15th. The president was arrested without any major confusion. President Yoon has said that the procedures were illegal and invalid, and is refusing to make statements during questioning. ■5,000-person investigation force People were crowded in front of the presidential residence in Seoul, South Korea, from early in the morning. Both supporters of the president and those calling for his arrest gathered. According to South Korean media, the joint investigation headquarters, which is made up of police and other organizations, was mobilized with 5,000 people, including 3,200 riot police. Those calling for Yoon's arrest: "Yoon Seok-yeol, the ringleader of the rebellion. Arrest him." "Trample the ringleader of the rebellion. Crush him." Yoon's supporters: "If the president is arrested, we will protect the people here to the death." Some supporters tried to block the investigative vehicles on the main road... Lawmakers from the ruling party rushed to the residence to make their appeal, but the voices of protest drowned them out. Rep. Kim Ki-hyun of the ruling party People Power Party: "We demand an immediate halt." Protesters: "As a political party that represents the people, you should first apologize for the illegal martial law!" Rep. Kim Ki-hyun of the ruling party People Power Party: "Without the consent of those in charge..." Protesters: "The arrest warrant is not illegal! Martial law is illegal!" ■Three lines of defense: "No resistance" The road from the main gate to the residence was blocked by buses and other vehicles. Beyond that, people from the Presidential Security Agency were gathered. It was around 7 a.m. when activity began. Several vehicles came and then turned back. About 15 minutes later, they all withdrew at once. Immediately after that, a ladder was placed on the bus. Some people, presumably riot police officers, climbed over it and moved the bus to create an aisle. A large number of investigators entered from there. After that, there were two barricades made of cars, but they were able to break through them without any problems and headed to the official residence. About two and a half hours later. There were no major clashes and President Yoon is believed to have been arrested. About 20 minutes later, the car arrived at the High Criminal Investigation Agency, where the investigation headquarters is located. President Yoon was seen walking in. This is the first time in Korean history that a sitting president has been arrested. He is suspected of having issued a state of emergency last month and leading a civil unrest. ■The order to "stop them with a knife" was also attempted by the investigation authorities on the 3rd, but was blocked by the National Guard and gave up. This time, President Yoon is said to have issued a stronger order, saying, "Even if you can't use a gun, carry a knife and stop them at all costs." However, local media reported that the reason he was arrested without resistance was because the security personnel did not follow the instructions of their leader. The personnel felt that the use of force was excessive and were concerned that they might be arrested this time. In addition, in a video taken just before President Yoon was arrested, he explained as follows. ■ Message left before arrest President Yoon Seok-yeol: "In order to prevent bloodshed, I have decided to appear before the Supreme Police Agency, even though it is an illegal investigation. However, this does not mean that I approve of the investigation by the Supreme Police Agency. As the president who should uphold the constitution and legal system of the Republic of Korea, I do not approve of these illegal and invalid procedures, but rather do so with the sole intention of preventing bloodshed." However, he strongly criticized the arrest. President Yoon Seok-yeol: "Unfortunately, all the laws in this country have collapsed. It is extremely deplorable to see the procedures being carried out so coercively with an invalid warrant." President Yoon is said to have refused to make a statement when questioned by the investigating authorities. Protesters gathered in front of the Supreme Police Agency where President Yoon is being held. Yoon's supporters: "Dismantle the Supreme Police Agency." Some people even set themselves on fire near the group of protesting supporters of the president. A ruling party lawmaker who spoke with President Yoon at the official residence just before his arrest said... Yoon Sang-hyun, a ruling party lawmaker from the People Power Party, said, "The president was prepared.