A man set himself on fire on Wednesday near South Korea's corruption investigation office, where impeached President Yoon Suk Yeol was being interrogated over insurrection allegations, the national fire agency said.
The man, in his 60s, was severely burned and unconscious following the incident which happened just after 8:00 pm local time (1100 GMT), the fire agency said.
Yonhap news agency had earlier reported that the man had died.
Scores of people protesting Yoon's arrest, related to his stunning decision to declare martial law on December 3 that plunged the country into political turmoil, were still gathered outside the offices at the time of the incident.

Azerbaijan accuses Iran of firing two drones at its territory, injuring two
72 killed in Israeli attacks on Lebanon as it warns residents to leave south
Nepal goes to the polls; voters seek change after youth-led protests
Landslide kills over 200 people at Congo's Rubaya mine
80 people killed after US sinks Iranian warship