At least three teenagers were killed and six other children were injured in a wave of Ukrainian drone strikes targeting Russia's southern regions early Monday, Russian officials said, as several logistics facilities belonging to online retail giant Ozon were also hit.

The attacks struck multiple locations across Krasnodar region, Dagestan, Adygea and the Stavropol region, causing fires, forcing evacuations and disrupting operations at several Ozon facilities.

Russian Children's Rights Commissioner Maria Lvova-Belova said six children were hospitalized after sustaining injuries in the Krasnodar attack. Earlier, regional authorities reported that debris from an intercepted drone fell onto a private children's center.

The incident has raised particular concern because the victims were reportedly teenagers and the attack occurred in an area containing civilian facilities.

Russia's second-largest online retailer, Ozon, said several of its logistics facilities came under attack during the overnight drone strikes.

A large fire broke out at the company's logistics hub in Enem, in the Krasnodar region, after a drone attack. Ozon said emergency services were dispatched to the scene and employees were evacuated.

Another Ozon facility in Dagestan was also hit. The company said a fire broke out following the drone strike and that several people were reportedly injured.

Videos circulating on social media appeared to show drones approaching an Ozon warehouse in Dagestan before explosions and fires erupted. Armed personnel could be seen attempting to shoot down the incoming drones.

Ozon also evacuated employees from facilities in neighboring Adygea and the Stavropol region as a precaution. The company said those facilities were not damaged.

The attacks forced Ozon to suspend or restrict operations at several distribution centers as authorities assessed the damage and secured the affected areas.

The attacks also triggered a sharp reaction on Russia's financial markets.

Ozon shares fell dramatically on the Moscow Exchange following reports of the strikes, while shares of AFK Sistema, one of Ozon's major shareholders, also declined sharply.

The market reaction reflected concerns over potential damage to Ozon's logistics infrastructure, which plays a crucial role in the company's nationwide delivery network.

The repeated targeting of Ozon facilities could create additional logistical disruptions at a time when Ukraine has increasingly focused its long-range drone campaign on infrastructure deep inside Russian territory.

The latest attacks came after a series of strikes against Ozon facilities over the weekend.

An Ozon logistics center in Russia's Samara region was hit by Ukrainian drones on Saturday, prompting the company to suspend operations at the facility. Another Ozon facility was subsequently reported to have been damaged in the continuing wave of attacks.

The campaign against Ozon follows weeks of attacks on facilities belonging to Wildberries, Russia's largest online retailer.

Ukrainian authorities have accused Wildberries of supporting Russia's military-industrial and logistical capabilities by providing access to drone components and other equipment. Moscow has not accepted those allegations.

The targeting of major commercial warehouses marks a broader shift in Ukraine's long-range drone campaign, which has increasingly focused on logistics, fuel infrastructure, industrial facilities and other assets that Kyiv says contribute to Russia's ability to sustain the war.

The deaths and injuries in Krasnodar have added a new civilian dimension to the escalating long-range drone war between Russia and Ukraine.

Russian authorities condemned the attacks as strikes against civilian infrastructure and accused Kyiv of endangering civilians.

Ukraine has repeatedly argued that its long-range strikes are aimed at weakening Russia's military capabilities and disrupting the supply chains that support Moscow's war effort.

The latest strikes underscore the growing geographical reach of the conflict, with drone attacks increasingly occurring hundreds of kilometers from the front lines.

Russian emergency services continued firefighting, damage assessment and security operations at the affected facilities on Monday, while authorities warned residents in several southern regions to remain alert to further drone threats. (ILKHA)