Seoul: South Korean President Park Geun-hye suffered another political setback when her choice for prime minister withdrew his name amid questions about the ethics of earning a large income after leaving public service.

Park had nominated Ahn Dai-hee to replace the incumbent who resigned over the government’s slow and ineffective response to last month’s ferry disaster that killed more than 300 people.

Park’s office said last week Ahn, a former Supreme Court justice and before that a prosecutor known for fighting corruption, was the ideal person to lead reform of government.

Ahn was expected to enforce bureaucratic ethics including ending a culture of officials leaving senior government jobs to go into the private sector which can blur the lines between businesses and those regulating them.