President Yoon Suk Yeol's approval rating plummeted to 13 percent after his short-lived martial law declaration, down by 6 percentage points from a week before, a poll by Gallup Korea showed Friday.

Within a week, the approval rating during the period between Wednesday and Thursday fell by 3 percentage points from 16 percent as of Tuesday, according to a poll of 1,001 respondents.

Some 80 percent of respondents disapproved of Yoon after his speech declaring martial law. This figure hit an all-time high since his inauguration in May 2022.

These figures have brought the conservative President's popularity to a new low, breaking the previous record of 17 percent in the first week of November, when it was revealed that Yoon had interfered in the ruling party's election process.

Supporters approved of Yoon's achievements in foreign affairs and national security. However, soaring consumer prices, the imposition of martial law, lack of communication with the public and controversies surrounding Yoon's wife, first lady Kim Keon Hee, were cited for the negative feedback on Yoon's state affairs.