President Park Geun-hye is mulling over whether to submit a motion to the National Assembly asking for a confirmation hearing on Prime Minister-designate Moon Chang-keuk.
"The president is receiving updates on domestic affairs from top aides during her trip. No motions requesting for confirmation hearings for Cabinet members will be made until after she returns to Korea."
The presidential office had earlier said it would ask the parliament to prepare for a hearing this week.
The postponement comes as both rival parties have been stepping up pressure on Moon to step down.
He's been under fire for making controversial remarks years ago about Japan's colonization of Korea.
At Wednesday's interpellation session lawmakers grilled members of President Park's Cabinet, where it became apparent that the prospects of Moon winning parliamentary confirmation are dim.
Won Hye-young, lawmaker for the main opposition New Politics Alliance for Democracy, lashed out at the presidential office for Moon's nomination.
"There seems to be a problem with the presidential office. It's not making the right choices for prime minister. What's going on?
"I regret the fact that such controversies continue to rise. I cannot comment on the presidential office's verification system for candidates."
President Park's first choice for Prime Minister, Ahn Dai-hee, withdrew his nomination amid criticism that he had made too much money as a lawyer, benefiting from his status as a former Supreme Court justice.
"The National Assembly will resume the interpellation session on Thursday with a focus on the economy. While details on the agenda have not been released, it's believed lawmakers will focus on bolstering safety management systems in response to April's ferry disaster.
Ji Myung-kil, Arirang News."