President Park Geun-hye said Tuesday that North Korea failed to show any sincerity towards improving soured relations with South Korea, a reflection of heightened cross-border tensions between the two sides.

North Korean leader Kim Jong-un offered to hold military talks between the two rival Koreas in an apparent move to ease military tension on the Korean Peninsula.

Still, he described North Korea as a "responsible" nuclear weapons state during the recent congress of the ruling Workers'

Party, a clear sign that he has no intention of giving up its nuclear programs.

Last year, the two sides agreed to reduce military tension, though their relations have worsened as North Korea carried out its fourth nuclear test and a long-range rocket launch earlier this year.

"North Korea is continuing its threat of provocations by ignoring warnings from the international community ... while failing to show sincere changes to improve inter-Korean relations," Park said in a Cabinet meeting.

The president also blasted North Korea for claiming it is a nuclear state and for announcing its plan to strengthen its nuclear weapons capability. Seoul and the international community at large do not recognize the North as a nuclear power.

South Korea's government, meanwhile, already rejected Kim's latest dialogue offer as a sheer propaganda ploy that lacks sincerity.

On domestic issues, Park expressed hope that the government and rival parties will hold dialogue and make compromises involving state affairs.

Park made the comments three days before she will host a meeting with the new floor leaders and chief policymakers of the three major political parties. The event will be the first face-to-face meeting following last month's parliamentary elections.

"I hope that the meeting could provide a chance to forge public consensus," Park said.

Chung Jin-suk, floor leader of the ruling Saenuri Party, told reporters that participants could discuss how to handle various outstanding issues, including critical topics such as improving the livelihoods of ordinary people.

The meeting could set the tone for Park's relations with the rival parties in the new parliament.

Park's ruling Saenuri Party suffered a serious defeat in the April 13 polls.

The Saenuri Party won 122 out of 300 seats up for grabs, while the main opposition Minjoo Party and the People's Party secured 123 and 38 seats, respectively. Seventeen other seats are held by other minor party members and independents.

Park also called on officials to ensure all 120 public agencies can introduce a performance-based wage system for employees as part of efforts to improve efficiency in the public sector.

Under the merit pay system, employees will be paid differently based on their achievements, with the difference in their annual salary expanding to an average of 3 percent from 2 percent.

"The normalization of public agencies is a task that cannot be delayed anymore," Park said.

She also renewed her calls for cutting red tape to help foster new industries, including delivery service using drones.

Park has been pushing to lift or ease unnecessary regulations to help revive South Korea's faltering economy. The chief executive has often referred to unnecessary business restrictions as a form of "cancer." (Yonhap)