Ukraine's General Staff said in a statement: "On the night of February 28, the Defense Forces of Ukraine destroyed a thermobaric ammunition storage facility of the Russian invaders in the temporarily occupied territory of the Donetsk region, in the Selidove district.
The deal - said to be worth up to $ 500 billion - is seen as a way for Ukraine to get the US back on its side ahead of talks on ending the war with Russia.
Following the peace talks, which mark the first time Russia and US delegates have met in person since the war broke out, both sides said they were hugely beneficial.
Close Putin aide, Yuri Ushakov, said the talks “went well” as he also revealed negotiators have been agreed to talk about the war in Ukraine from either side, IFAX reported.
The gruelling three-year war in Ukraine now seems to be edging closer to a peaceful ceasefire after last week's historic peace talks between Russia and the US.