Russia launched its deadliest aerial assault so far this year on Ukraine, killing 16 people, including a 12-year-old child, according to Ukrainian officials.

Russia unleashed a barrage of hundreds of drones and missile on Ukraine, killing at least 18 people in its most intense attack of the year.

"Tragically, there are fatalities in Odesa, Kyiv, and Dnipro," Zelenskyy said in a social media post.