South Korean President Lee Jae-myung's approval rating hit about 70 percent last week, a weekly poll showed Monday.

Support for Lee, who took office on June 4, reached 73.4 percent last week, while the negative assessment on Lee's conduct of state affairs stood at 23.6 percent, according to computer assisted telephone interviewing (CATI) by local pollster Flower Research.

The ruling liberal Democratic Party's approval score recorded this year's high of 53.7 percent, 28.5 percentage points higher than the conservative opposition People Power Party's 25.2 percent.

Support rate for both the minor left-leaning Rebuilding Korea Party and the minor rightist New Reform Party logged 4.2 percent last week.

The pollster's separate survey of automated response system (ARS) showed that Lee's approval rating came to 69.1 percent last week.

Both the CATI and the ARS surveyed 1,006 voters from Friday to Saturday. They had plus and minus 3.1 percentage points in margin of error with a 95-percent confidence level.