Ukraine has launched a massive overnight retaliatory drone attack on several Russian sites, targeting energy, digital and transport infrastructure.

The strikes reportedly focused on Saint Petersburg and the surrounding Leningrad region, including the St. Petersburg Oil Terminal, a major fuel export hub on the Baltic Sea.

Leningrad Oblast Governor Aleksandr Drozdenko said approximately 150 drones were shot down, confirming reports that the Ukrainian military had launched hundreds of drones during the attack.

Among the facilities hit was the Ruchi oil depot, which stores gasoline and diesel. The VK data centre, a major server facility belonging to Russia’s largest social network, was also targeted.

The Vostochnaya substation, a 330-kilovolt high-voltage power installation located near the data centre, sustained damage, leaving thousands of people without electricity.

A fire also broke out after drones struck an Ozon warehouse, a logistics hub in Kolpino.

The Korabelny Fairway, a 620-metre-long, three-span cable-stayed expressway bridge, was another facility reportedly affected by the attack.

Meanwhile, Ukrainian President Volodymyr Zelensky said on Sunday that Russia had attacked Ukraine’s energy, oil and gas sectors 76 times since US President Donald Trump announced an energy ceasefire a week earlier.

In a post on X, Zelensky cited Saturday’s strikes on substations in the Vinnytsia, Zhytomyr, Khmelnytskyi and Odesa regions, adding that tens of thousands of families remained without electricity.

He also reported a strike on an agricultural enterprise in Volyn on Sunday, while fresh attacks on residential buildings across several regions killed two people and injured 12 others.

According to Zelensky, Russia had attacked Ukraine with 2,700 drones, 1,700 aerial bombs and 66 missiles over the preceding week.

“The main targets of these strikes are energy facilities … to cause a blackout,” he wrote.

The Ukrainian president further accused Moscow of failing to take reciprocal steps following sanctions relief by the United States.

He argued that Russia was instead seeking to generate revenue, describing its actions as evidence that Moscow believed its commitment to the war was paying off and that it could continue fighting.