Russia launched a massive attack on Ukraine overnight into Saturday with hundreds of drones, killing at least one person, part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

Ukrainian President Volodymyr Zelenskiy said the attack on Odesa injured six people, including a child. Russia launched over 30 missiles and 300 drones during its overnight assault that affected 10 regions of the country, he added on Telegram, and reiterated the importance of air defence provision.

A Russian drone attacked Sumy, damaging residential buildings and the power grid. A mother and son asked for medical assistance, according to the head of the Sumy regional military administration, Oleh Hryhorov.