Members of the Korean Confederation of Trade Unions (KCTU) and the Journalists' Union protest in front of the People Power Party headquarters in Yeongdeungpo District, Seoul, Dec. 13. Yonhap

President Yoon Suk Yeol's approval rating fell to a record low of 11 percent, a survey showed Friday, amid growing public backlash over his martial law declaration last week.

According to the survey conducted by Gallup Korea on 1,002 adults aged over 18 from Tuesday to Thursday, positive assessment of Yoon's performance fell 5 percentage points from a week earlier to 11 percent — the lowest since he took office in May 2022.

Negative assessment of Yoon rose to a record high of 85 percent, with the martial law situation cited by 49 percent of respondents and economic concerns cited by 8 percent.

Regarding Yoon's possible impeachment, 75 percent of respondents supported it, while 21 percent opposed it.

The National Assembly will hold an impeachment vote against Yoon over his botched martial law bid Saturday.

Among supporters of the ruling People Power Party (PPP), 27 percent supported impeachment, while 66 percent opposed it.

Meanwhile, 97 percent of supporters of the main opposition Democratic Party of Korea (DPK) supported impeachment, compared with 3 percent in opposition.

Support for the PPP fell 3 percentage points from the previous week to 24 percent, while the figure for the main opposition DPK gained 3 percentage points to 40 percent.

It marked the largest gap in support for the DP over the PPP since the launch of the current administration.

The survey has a margin of error of plus or minus 3.1 percentage points, with a confidence rate of 95 percent. (Yonhap)