POKROVSK, Ukraine—Ukrainian President Volodymyr Zelensky warned of a possible escalation by Russia ahead of Ukraine’s Independence Day as Moscow opened an investigation into a car explosion that killed the daughter of an ally of Russian President Vladimir Putin.
“We should be conscious of the fact that this week Russia may try to do something particularly nasty,” the Ukrainian leader said in his daily video address late on Saturday. “But Russia has done the same constantly each week throughout the past six months.”