Ukraine's President Volodymyr Zelensky has invited Donald Trump to visit his country ahead of any deal with Russia to end the war.

"Please, before any kind of decisions, any kind of forms of negotiations, come to see people, civilians, warriors, hospitals, churches, children destroyed or dead," Zelensky stated during an interview with CBS's 60 Minutes program, BBC reported.

The interview was conducted before to the deadly Russian missile strike on the Ukrainian city of Sumy on Sunday, which left 117 people injured and 34 dead, including two children.

Trump called the incident "horrible," while Germany's chancellor-in-waiting, Friedrich Merz, charged Russia of war crimes, according to BBC.

There was no quick formal response from Russia, whose forces over the border are thought to be preparing for a major onslaught.