The National Assembly has postponed its parliamentary session to vote on the confirmation of prime minister nominee Han Duck-soo by two hours.

The assembly was set to hold a plenary session at 4 p.m. to vote on Han's nomination, but postponed it to 6 p.m. following a request by the Democratic Party(DP).

A spokesperson for the DP said a general meeting of the party's lawmakers is ongoing and that the party needs more time to reach a decision.

The DP had earlier declared Han as unqualified due to his post-government career at a law firm following Han's confirmation hearing.

The main opposition DP, with 167 seats in the 300-seat assembly, holds the key to Han's nomination. A majority of all parliamentary members must be in attendance and over half of them must vote for the nomination.

The ruling People Power Party is calling for the DP's cooperation, saying that the opposition party should not hinder the operation of the new government.