Sept. 8 (UPI) -- The Trump administration has floated the idea of a second round of sanctions on Russia after its largest aerial attack on Ukraine's capital since the start of the war.

Speaking to reporters Sunday at Joint Base Andrews in Maryland, President Donald Trump decried the attacks on Kyiv, which killed four people, including a mother and her baby, the BBC reported. Trump said he was "not happy with the whole situation."

Asked by a reporter whether he was considering a second round of sanctions on Russia in response to Sunday's attacks, Trump said, "Yeah, I am."

He declined to give further details, but Treasury Secretary Scott Bessent told NBC on Sunday that the United States must partner with Europe to "collapse" Russia's economy. He called on European countries to impose sanctions on other nations that purchase oil from Russia.

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