South Korea’s main opposition party is seeking to impeach Acting President Han Duck-soo in a potentially risky move to put maximum pressure on the ruling party.

Lawmakers from the liberal Democratic Party agreed unanimously on Tuesday to pursue an impeachment motion against acting President Han Duck-soo over his refusal to consider two bills to establish special counsel probes into Yoon and his wife.

South Korea's main opposition party vowed on Tuesday to impeach acting president Han Duck-soo but reversed an earlier plan and decided to wait until later in the week, party officials said, as the risk of further political uncertainty heightened.