US National Security Adviser Mike Waltz has taken responsibility for a group chat in which high-ranking officials planned military strikes in Yemen in the company of a journalist who was inadvertently added, BBC reported.

"I accept full responsibility. "I built the group," Waltz told Fox News on Tuesday, adding that it was "embarrassing."

President Donald Trump and US intelligence leaders have played down the security threats, claiming no confidential information was provided.
However, Democrats and some Republicans have called for an investigation into what several senators have described as a significant breach, according to BBC.

Jeffrey Goldberg, the editor-in-chief of Atlantic magazine, stated that he was unintentionally joined to the Signal chat by a user named Mike Waltz.