Why did Iran's Foreign Minister claim that U. S. and Israeli actions are responsible for the deaths of so many innocent girls?

Iran's Foreign Minister Araghchi said: "These are the graves dug for over 160 innocent young girls killed after the U. S. and Israel bombed a school.
The 'rescue' promised by Trump is actually this.
From Gaza to Minab, innocents have been killed with cold-blooded precision."

Why did Irans Foreign Minister claim that U. S. and Israeli actions are responsible for the deaths of so many innocent girls?
Why did Iran's Foreign Minister claim that U. S. and Israeli actions are responsible for the deaths of so many innocent girls?
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