A wave of 140 drones and missiles targets Ukraine hours before high-stakes peace summit in Washington; children among dead.

An overnight Russian drone strike on Kharkiv killed three people, including a child, and wounded more than a dozen others, Ukrainian authorities said Monday.

Russian forces have attacked the city of Kharkiv with Geran-2 drones. Four of these UAVs have hit a five-storey apartment building, causing structural damage and fires. Two adults and a child have been killed and people may still be trapped under the rubble.