SEOUL, South Korea's top diplomat said Thursday there's a gap between North Korea and the U.S. on ways to achieve the common goal of a nuclear-free Korea.

Speaking to lawmakers here, Foreign Minister Kang Kyung-wha said Pyongyang and Washington are "directly communicating" with each other to prepare for their much-anticipated summit talks scheduled to be held in Singapore on June 12.

She recently met with Secretary of State Mike Pompeo in Washington D.C. and they had a phone conversation earlier this week.

Externally, Kang said, North Korea has committed itself to complete denuclearization but "it's true that there's a difference in opinions between the North and the U.S on how to pull off denuclearization." She did not elaborate.

The North's leader, Kim Jong-un, and U.S. President Donald Trump will try to reach a deal on concrete methods when they hold the summit, she added.

The minister refused to attach too much meaning to specific terms to describe the level of denuclearization to be discussed.

U.S. officials have long talked about "CVID," which stands for "complete, verifiable, irreversible dismantlement." Recently, Pompeo used the expression "PVID" for "permanent" denuclearization, sparking media speculation about whether the Trump administration has raised the bar for North Korea.

"Although the 'P' sounds stronger in tone (in terms of the demand for denuclearization), in fact, (the two) mean the same thing," Kang told the National Assembly's committee on foreign and inter-Korean affairs.

On the North's announced plan to demolish its main nuclear testing site in front of foreign media next week, she said it's a "far more meaningful measure" than the 2008 removal by televised explosion of a cooling tower in the Yongbyon nuclear complex.

Asked about whether she trusts the North's young and flamboyant leader, she hesitated a bit and said yes.

She made clear that there's no policy review yet on the possible pullout or scaling-down of the 28,500-strong U.S. Forces Korea (USFK).

The fate of the USFK is an issue to handle prudently, not hastily, unless there's a "radical" change in the Northeast Asian security order, she said.

Source: Yonhap News Agency