Seoul, May 19 (IANS): South Korea President Yoon Suk-yeol on Thursday expressed optimism that the opposition-controlled National Assembly would endorse Prime Minister nominee Han Duck-soo, saying he expects parliament to handle the matter "in accordance with common sense."

Asked whether he wants to send a message to the main opposition Democratic Party (DP), a day before the National Assembly votes on Han's nomination, Yoon replied, "I think (parliament) will take care of it in accordance with common sense."

Yoon made the remarks as he arrived for work at the presidential office, Yonhap News Agency reported.

A plenary session of the National Assembly will take place Friday to vote on Han's nomination. The DP holds the ultimate say on whether to confirm him because the party has 167 seats in the 300-seat National Assembly.

In South Korea, the prime minister is the only Cabinet post that requires parliamentary approval.

The DP's confirmation hearing committee declared Han as "unqualified," citing his post-retirement career at a law firm and other suspected irregularities.

But some members have expressed concerns that a disapproval could create a negative image of the DP ahead of the June 1 local elections, with criticism that the party is hindering the operation of the new government.

The ruling People Power Party (PPP) pressed the DP to cooperate in approving Han's nomination, warning the opposition would face a strong backlash if it votes down the nomination.

"The DP will inevitably face a fierce backlash from the public if it continues to refuse to confirm the nomination with no clear reason," PPP floor leader Rep. Kweon Seong-dong said.