Seoul, Jan 4 (NationPress) Tens of thousands of individuals assembled in South Korea's Seoul on Saturday to demonstrate either in favor of or against the detention of President Yoon Suk Yeol, following his momentary imposition of martial law in early December, which heightened tensions and resulted in major traffic disruptions.

Approximately 35,000 supporters of Yoon gathered for pro-Yoon demonstrations near Gwanghwamun Square in central Seoul at 1 p.m., before suddenly shifting to Hannam-dong in the Yongsan district to confront anti-Yoon protesters.

Just 400 meters away, members of the militant labor coalition Korean Confederation of Trade Unions (KCTU) held a rally demanding the immediate arrest of Yoon, according to the Yonhap news agency.

The KCTU participants attempted to march toward Yoon's residence, but police blocked their path. During the protest, physical confrontations occurred, resulting in the detention of two individuals for allegedly attacking police officers.

Protesters blocked roads, leading to severe traffic congestion in the vicinity. Seoul's Hangangjin Station was temporarily closed, with trains bypassing it without stopping.

In a separate demonstration, a significant protest took place near Gwanghwamun Square calling for Yoon's swift impeachment.

On Friday, the Corruption Investigation Office for High-ranking Officials (CIO) made an unsuccessful attempt to detain Yoon after a six-hour standoff with his security team at the presidential residence.

Yoon's unexpected, though short-lived, martial law declaration was followed by the National Assembly's impeachment vote, awaiting a final ruling from the Constitutional Court.

Investigations are ongoing regarding the incident, but Yoon has declined to appear for questioning, prompting a court to issue a warrant for his detention.

Earlier in the day, South Korean police requested two senior officials from the Presidential security office to come in for questioning concerning their alleged interference with official duties tied to the state anti-corruption agency's efforts to detain suspended President Yoon Suk Yeol.

Park Chong-jun, head of the Presidential Security Service (PSS), and Deputy Kim Seong-hoon were implicated on suspicion of obstructing special official duties, as PSS officials, along with military personnel, prevented the Corruption Investigation Office for High-ranking Officials (CIO) from executing a warrant to detain Yoon on Friday, following his brief declaration of martial law on December 3.