Updated

Secretary-General Antonio Guterres is offering his "good offices" so that North Korea's "alarming" and accelerating nuclear and missile program does not accidentally escalate into conflict.

The U.N. chief warned at a ministerial meeting of the U.N. Security Council on Friday that "the risk is being multiplied by misplaced over-confidence, dangerous narratives and rhetoric, and the lack of communication channels."

Guterres urged an immediate re-establishment and strengthening of communication channels, saying it was "critical to lower the risk of miscalculation or misunderstanding and reduce tensions in the region."

North Korea, which in the past has boycotted almost all Security Council meetings where its nuclear program is discussed, is expected to speak during Friday's open session.