March 1 (Reuters) - Ukrainian President Volodymyr Zelenskiy said on Sunday that the changes in Iran ‌brought about by U.S. and Israeli strikes ‌should be "used properly" to benefit the country's people who had ​withstood violence from their authorities.

Zelenskiy, speaking in his nightly video address, said Iran's authorities had killed "tens of thousands of people in the last couple of ‌months alone," referring ⁠to a crackdown on protests.

Iran, he said, had "predetermined the way it is treated" ⁠by supplying attack drones to Russia in Moscow's four-year-old conflict in Ukraine and had also "fomented wars ​in the ​region."

"It is important that ​the this chance for ‌changes in Iran be used properly," he said. "The Iranian people were on their own for a long time, enduring violence while standing against the Iranian regime."

He repeated his contention, stated on Saturday ‌after the strikes began, that ​U.S. resolve "brings results."

Zelenskiy thanked "everyone who ​is trying to ​prevent the spread of war" and ‌said Russia should heed what ​had happened ​to Iranian leaders that "justice is finally served in the end."

Zelenskiy said on Saturday that Moscow ​had fired ‌more than 57,000 Iranian-designed Shahed-type drones at Ukraine during ​the war.

(Reporting by Ron Popeski and Bogdan ​KochubeyEditing by Nick Zieminski)