Russia's intensified drone and missile attacks on Ukraine have killed at least 10 civilians, prompting a major Ukrainian counterstrike and raising global concerns over escalating warfare.

Russia launched 550 drones and missiles across Ukraine overnight in the largest aerial assault since the war began. The capital Kyiv was the primary target.

(Reuters) -At least three children were among 27 people wounded as a result of a Russian drone attack on Ukraine's second-largest city of Kharkiv overnight that damaged apartments and a kindergarten,