Saudi-led coalition forces used an American bomb to blow up a school bus in Yemen, reportedly killing at least 51 people, including 40 children.

In his first public comments on that attack, President Trump told "Axios on HBO" that the killings were "a horror show." But he declined to say if it's made him reassess American arms sales to the Saudis.

"I think it's a terrible situation. I hated seeing what happened with the bus and the children cause that's pure — that's a horror show when you see a thing like that, you saw the bus," Trump noted.

Axios' Jim VandeHei then asked Trump if this gave him pause about selling American weapons to the Saudis.

"I don't want to see that," Trump replied. "That is a terrible thing. What's going on in Yemen generally is a terrible thing, and we're gonna see and we're looking at Yemen very carefully right now. We are actually studying Yemen very, very carefully."

I asked if Trump would handle the war differently if he were in the Saudis' place.

"I'll be talking about a lot of things with the Saudis," he continued, "but certainly I wouldn't be having people that don't know how to use the weapons shooting at buses with children."