Russian strikes on Ukraine’s eastern city of Dobropillia killed 11 people overnight, Ukrainian President Volodymyr Zelensky said Saturday, adding that “such strikes prove that Russia’s goals are unchanged.

At least four people were killed in a Russian attack, Ukraine said, amid concerns about air defenses after the U.S. said it was suspending military and intelligence aid.

Russia launched heavy aerial attacks on Ukraine for a second night Saturday after the United States stopped sharing satellite images with the Ukrainian government, officials said. At least 22 people have been killed.