Authorities in Russia's second city of ​St Petersburg and the surrounding Leningrad region said ‌on Saturday that a local port and oil infrastructure were struck in a major Ukrainian drone attack overnight.

St. Petersburg Governor ​Alexander Beglov said the city of 6 million ​had come under a "large-scale" drone attack, with the ⁠city's oil terminal struck. He said there were no ​casualties and that the aftermath of the attack had been ​dealt with.

Leningrad region Governor Alexander Drozdenko said drones had struck the port of Vysotsk, about 170 km (105 miles) northwest of St ​Petersburg on the Gulf of Finland. The port handles ​oil, grain, coal and liquefied natural gas.

Drozdenko said 72 drones had ‌been ⁠shot down over the Leningrad region.

Ukraine has intensified strikes on Russian energy infrastructure this year, causing fuel shortages in parts of Russia.

St Petersburg, about 900 km (560 miles) ​from Ukrainian-held territory, ​has occasionally ⁠come under attack from Kyiv's drones.

Targets have included the city's oil terminal and ​a moored warship during the St. Petersburg ​International Economic ⁠Forum in June.

South of St. Petersburg, the governor of Pskov region said more than 30 drones had been shot ⁠down ​overnight.

He reported minor damage ​and injuries, including to a factory in the town of Velikiye Luki.

-Reuters