A devastating Russian attack against Ukraine on Palm Sunday, coming days after Russian President Vladimir Putin shook hands with President Trump’s top negotiator, is raising doubt about the U.S.’s strategy in ceasefire talks with Moscow.

Dramatic CCTV footage from a grocery shop in the Ukrainian city of Sumy showed the moment a devastating Russian missile strike hit the city in the deadliest attack on Ukrainian civilians this year.

A Russian airstrike killed more than 30 people, including children, in Sumy, Ukraine as people gathered for Palm Sunday services marking the deadliest attack so far this year. Ukrainian President Volodymyr Zelensky said the strike was evidence of Russia,