Waltz out as U.S. national security adviser and tapped for UN ambassador

U.S. President Donald Trump has removed National Security Adviser Mike Waltz following a security breach and named Secretary of State Marco Rubio his interim replacement.

As part of the reshuffle, Trump has nominated Waltz as U.S. Ambassador to the United Nations.

President Trump's decision was announced on Thursday local time.

This comes after Waltz mistakenly added journalist Jeffrey Goldberg to a group chat of top officials discussing classified U.S. military operations in Yemen.

While an internal review concluded the breach was accidental, the incident intensified tensions between Waltz and other officials over his hawkish foreign policy views.

Secretary of State Marco Rubio has been appointed as acting National Security Adviser, adding to his current roles as Secretary of State, acting administrator for the United States Agency for International Development, and U.S. Archivist.

The Senate must now confirm Waltz's nomination as UN Ambassador.