Pete Hegseth, clashed with one of the senior-most reporters at the Pentagon and his former colleague, Fox News' Jennifer Griffin

Defense Secretary Pete Hegseth lashed out at a Fox News reporter on Thursday as he took questions during a Pentagon briefing about last weekend’s U.S. strikes on Iran’s nuclear facilities.

Griffin, the chief national security correspondent at the Pentagon, asked Hegseth whether he had “certainty that all the highly enriched uranium was in the Fordow mountain, or some of it, because satellite photos showed there was more than a dozen trucks there two days in advance. Are you certain none of that highly enriched uranium was moved?”