The official was commenting on North Korea's latest criticism of the US, suggesting that Trump will push ahead with the meeting regardless.

North Korea said Sunday the US was misleading public opinion and provoking the regime by seeing Kim's willingness to denuclearize as a sign of "weakness" resulting from sanctions and pressure on the regime.

The planned summit is being watched closely as it will be the first meeting between sitting leaders of the US and North Korea. Trump has said his aim is to get rid of the North's nuclear weapons program, which is posing a growing threat to the region and the US mainland.

The meeting is expected to take place in late May or early June, either inside the Demilitarized Zone dividing the Koreas or in Singapore.

On the possible release of three American detainees in the North, the White House official said he has "nothing to announce."

Trump hinted at their impending release last week, tweeting, "Stay tuned!" (Yonhap)