Ukrainian leader Volodymyr Zelensky called on allies to put "strong pressure" on Russia to end its war against Ukraine after a Russian strike on the city of Sumy killed 31 people.
"Without really strong pressure, without proper support for Ukraine, Russia will continue to drag out this war. It's been two months since Putin ignored America's proposal for a full and unconditional ceasefire," Zelensky said on social media, adding: "Unfortunately, they in Moscow are confident that they can afford to keep killing. We need to act to change the situation."
The US special envoy to Ukraine said Sunday that an attack by Russian forces on "civilian targets" in the northeastern city of Sumy "crosses any line of decency."
"As a former military leader, I understand targeting and this is wrong," retired lieutenant general Keith Kellogg posted on X, adding that "there are scores of civilian dead and wounded."

Kellogg was acting national security advisor during the first term of US President Donald Trump.

UK Prime Minister Keir Starmer said Sunday he was "appalled" by Russian missile strikes on the Ukrainian city of Sumy, which killed more than 30 people according to rescuers.

"I'm appalled at Russia's horrific attacks on civilians in Sumy," he posted on X, adding that Russian President Vladimir Putin "must now agree to a full and immediate ceasefire without conditions."
EU chief Antonio Costa on Sunday condemned "Russia's criminal missile attack on the city centre of Sumy" in Ukraine, saying the deadly strike proved Moscow was responsible for prolonging the war.

"Russia continues its campaign of violence, showing once again that this war exists and endures only because Russia chooses so," European Council president Costa wrote on X.