South Korea’s opposition lawmakers have tabled a motion to impeach the country’s prime minister and acting leader Han Deok-soo, less than two weeks after parliament voted to impeach President Yoon Seok-yeol.

Previously, South Korea refused to appoint judges to the Constitutional Court nominated by the main opposition Democratic Party.

“Han has revealed that he is an acting rebel, not an acting president,” Democratic House leader Park Chan-dae said on Thursday.

The opposition also accused Han of aiding Yun’s attempt to impose martial law on 3 December. Han earlier apologized for failing to stop it.

Han also vetoed several opposition-led bills, including one proposing a special investigation into Yun’s short-lived martial law order.

The impeachment motion is expected to be voted on in the next 24 to 72 hours.

To succeed, 151 of the 300 MPs must vote in favor.

Currently, Democrats hold 170 of the 300 seats in parliament. The opposition holds a total of 192 seats.

Opposition parties have been hoping that Han will not stand in their way while serving as the country’s caretaker president and that he will allow the bill to pass.

But he stood firm, exacerbating the political conflict.

Han Kuo-yu ended a cabinet meeting on Tuesday without reviewing two opposition-sponsored bills calling for a special prosecutor to investigate martial law and corruption allegations involving first lady Kim Kun-hee.

He said the reason why it was not included in the agenda was to give the government and the opposition more time to reach a compromise.

But Democratic House leader Park Chan-dae criticized him for “buying time and prolonging the rebellion.”

“We have clearly warned that it is entirely up to him whether Prime Minister Han Deok-soo will go down in history as a dishonorable figure, as a puppet of rebel conspiracy leader Yun Seok-yeol, or as a public servant who faithfully implemented the Constitution.” The public’s order,” Park Geun-hye told a televised party meeting.

On Thursday, Han Kuo-yu said he would not appoint the three judges nominated by the opposition-led National Assembly to the Constitutional Court – which is considering whether Yun Zheng should be impeached – unless rival parties reach consensus.

In response, Park Geun-hye said, “It is obvious that Han Deok-soo is neither qualified nor willing to defend the Constitution,” adding that the opposition will “immediately” introduce an impeachment bill.

South Korea’s ruling People’s Power Party said the opposition threats interfered with South Korea’s “legitimate exercise of power,” while a senior official in the prime minister’s office criticized the threats as “extremely regrettable.”

South Korea’s president took over as caretaker president after Yoon was ousted earlier this month. If lawmakers vote to impeach the South Korean president, Finance Minister Choi Sang-mok will be the next to be impeached.

The latest development in the country’s political unrest comes as Seoul’s Constitutional Court is considering whether Yoon should be permanently banned from office.

The court is expected to hold its first public hearing later this week.

It is unclear whether Yin himself will testify at the hearing, but protesters have vowed to continue calling for Yin’s expulsion during the court proceedings.

Yoon is also under investigation for alleged rebellion over a failed attempt to put the country under martial law.

He has refused to comply with several subpoenas issued to him, and investigators have warned that if he continues to fail to respond, they may issue a warrant for his arrest.

Several senior officials, including former Defense Minister Kim Yong-hyun, former Interior Minister Lee Sang-min and Army Chief Park Ahn-soo, are also under investigation.

Additional reporting by Jake Kwon and Hosu Lee in Seoul