KIEV, Oct. 5 (Xinhua) -- At least five people were killed and 10 others injured in an overnight Russian attack targeting Ukraine's infrastructure, Ukrainian President Volodymyr Zelensky said Sunday.

The attack involved about 500 combat drones and more than 50 missiles, including Kinzhal hypersonic missiles and cruise missiles, the president wrote on social media.

Nine regions in western, southern, northern, eastern and central Ukraine were targeted, he added.

In the western Lviv region, four members of one family, including a 15-year-old, were killed, said the regional Prosecutor's Office. It described the attack as the most severe assault on the region since the start of the conflict, damaging several industrial and energy facilities.

Lviv Mayor Andriy Sadovyy said that the Sparrow industrial park was set on fire during the strikes.

Local authorities also reported strikes on critical infrastructure, including energy facilities, in the northern Chernihiv region and the western Ivano-Frankivsk region.

The Russian Defense Ministry said on Sunday that its forces had conducted large-scale overnight strikes on Ukraine's military-industrial sites as well as its gas and energy infrastructure. ■