A team of U.S. officials entered North Korea on Sunday in preparation for a planned summit between President Trump and North Korean leader Kim Jong-un, the Washington Post reports — despite continued uncertainties surrounding the summit taking place.

The details: Per the Post, the team — which includes former U.S. ambassador to South Korea Sung Kim, the National Security Council's Korea specialist Allison Hooker, and Assistant Secretary of Defense for East Asia Randall Schriver — is focused on discussing North Korea's nuclear weapons. South Korean President Moon Jae-in said on Saturday that the North is committed to denuclearization.