Thousands of South Koreans gathered for rival demonstrations in the capital yesterday, as investigators prepare another attempt to arrest suspended President Yoon Suk Yeol over his short-lived martial law decree.

Yoon resisted arrest in a standoff between his guards and investigators last week after his failed December 3 power grab plunged South Korea into its worst political crisis in decades.

The country has bristled with tension for weeks after Yoon directed soldiers to storm parliament, where they unsuccessfully tried to prevent lawmakers from voting down martial law. Since being impeached, Yoon has battened down the hatches.

Separate from the insurrection probe, Yoon also faces ongoing impeachment proceedings. Lawmakers have already suspended him, but the Constitutional Court will decide whether to uphold this decision or restore him to office.

The court has slated January 14 for the start of Yoon's impeachment trial, which would proceed even in his absence.