The attack, which killed at least 10 people, was the deadliest on Ukraine’s capital in nearly a year. President Trump called on President Vladimir V. Putin to “STOP!” in a post on social media.

Ukraine's second largest city, Kharkiv, was coming under a missile attack early on Thursday, Mayor Ihor Terekhov said on Telegram.

A Russian missile attack on Ukraine's northeastern city of Kharkiv killed one man inside his home and wounded at least 112 ...