North Korean leader Kim Jong Un delivers a speech in Pyongyang on April 8. On Sunday, the North Korean government said President Biden made a “big blunder” last week when he called North Korea’s and Iran’s nuclear programs a security threat.

In this photo provided by the North Korean government, North Korean leader Kim Jong Un delivers a closing speech at the Sixth Conference of Cell Secretaries of the Workers’ Party of Korea in Pyongyang, North Korea, Thursday, April 8, 2021. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: “KCNA” which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)