SEOUL (Reuters) - South Korean authorities investigating impeached President Yoon Seok Yeol were at his official residence on Wednesday to execute an arrest warrant over insurrection accusations related to his Dec. 3 martial law declaration, Yonhap said.

South Korean investigators are trying once more to arrest Yoon Suk Yeol after a failed attempt earlier this month.

Investigators on Wednesday found themselves in a tense standoff with security forces at the presidential residence, as they made a second attempt to arrest impeached President Yoon Suk Yeol over his brief imposition of martial law,

South Korea's Constitutional Court adjourned the opening session of the impeachment trial of suspended President Yoon Suk Yeol within minutes on Tuesday after the embattled leader did not attend court.

South Korean investigators attempting to arrest President Yoon Suk Yeol were reportedly in a "standoff" with the impeached leader's guards.While attempting to execute a warrant for the arrest of South Korean impeached President Yoon Suk Yeol,

South Korean authorities investigating impeached President Yoon Seok Yeol were at his official residence on Wednesday to execute an arrest warrant over insurrection accusations related to his Dec. 3 martial law declaration.

South Korea looks set for a dramatic political showdown this week as impeachment proceedings kick off against suspended President Yoon Suk Yeol, who remains holed up in his fortified residence evading arrest for a separate criminal investigation.

Police officers and staff from South Korea's anti-corruption agency made another attempt with a large contingent to gain access to the residence of suspended president Yoon Suk Yeol on Wednesday morning,

The trial of impeached President Yoon Suk Yeol was set to start on Tuesday with oral arguments over his short-lived bid to impose martial law which threw the country into the worst political chaos in decades.