Poland’s foreign minister on Monday urged President Donald Trump to take steps to counter Russian President Vladimir Putin’s continued war in Ukraine following another deadly strike that killed 34, including two children, on Palm Sunday.

“I just want to say how appalled I am by the latest spate of Russian attacks on Ukraine,” Foreign Minister Radoslaw Sikorski told reporters ahead of the European Union’s foreign ministers meeting in Luxembourg.

“Ukraine unconditionally agreed to a ceasefire over a month ago,” Sikorski said. “The heinous attacks on Kryvyi Rih and Sumy are Russia’s mocking answer.”

The attacks were met with a swift international rebuke from European leaders, with Germany’s chancellor-designate, Friedrich Merz, calling it a “serious war crime.”

Leaders from Lithuania made similar claims and summoned a Russian diplomat over the incident on Monday.

France’s foreign minister ahead of the top international talks called for tougher sanctions on Russia to “suffocate” its economy and stop its war effort. 

In this photo provided by the Ukrainian Emergency Service, firefighters carry a body of the victim following Russia’s missile attack that killed at least 24 civilians in Sumy, Ukraine, on Sunday, April 13, 2025. (Ukrainian Emergency Service via AP)

Trump similarly condemned the attacks as “terrible” but said he “was told they made a mistake.” 

“But I think it’s a horrible thing,” he added.

Russian forces over the last month have dropped 2,800 air bombs on Ukraine, fired more than 1,400 drones – including 62 Shahed drones Sunday night – and levied some 60 other missiles of various types, according to The Associated Press.