Drones operating via fiber-optic wires are a new military challenge globally, as they are largely immune to jamming and interception attempts.

A concentrated, nine-minute-long Russian drone attack on Ukraine's second-largest city of Kharkiv on Wednesday killed six people and injured 64, including nine children, Ukrainian officials said. The attack followed Russia's two biggest air assaults of the war on Ukraine this week,

The attack used almost 500 drones and missiles, breaking a record set just days earlier, as Russia tries to overwhelm Ukraine’s air defenses, which shot down most of the weapons.

Russian drone strikes and bombs killed at least three people in the northeastern Ukrainian city of Kharkiv overnight, regional officials there said.

A two-year-old boy was killed by a Ukrainian drone strike in Russia's southern Belgorod region and his grandmother and another adult were wounded, local governor Vyacheslav Gladkov said on Thursday. Gladkov said the grandmother was out walking with the boy when a drone struck an apartment block.

Ukraine's president says a new prisoner exchange with Russia is ongoing and will take days, as both sides continue launching hundreds of attack drones.

Severely wounded’ prisoners set for exchange after Kyiv receives 1,212 dead soldiers - Kremlin aide Vladimir Medinsky says Ukraine returned bodies of 27 Russian soldiers

Russia has been firing North Korean ballistic missiles against Kyiv in the deadly overnight barrages, the latest of which killed three people in Ukraine’s second-largest city, officials said.