Defense Secretary Pete Hegseth said in an interview that aired Sunday that the United States was still investigating a strike on an Iranian school that killed at least 168 children.

“We’re still investigating, and that’s where I’ll leave it today. But what I will emphasize to you and to the world is that unlike our adversaries, the Iranians, we never target civilians,” Hegseth told CBS’ “60 Minutes” in the interview, which was conducted Friday.

Hegseth did not dismiss reports indicating the US was likely responsible, saying, “I’ve already said we’re investigating.”

However, one day after the interview was conducted, President Donald Trump told reporters he believed Iran was responsible for the strike.

Hegseth, who was standing next to Trump on Air Force One during the comments, maintained his response that the United States was still investigating.

But he added, “The only side that targets civilians is Iran.”