A Russian missile attack on Ukraine's east-central Poltava region on Monday injured 12 people and damaged power lines, knocking out electricity for over 55,000 consumers, regional governor Filip Pronin said.

He said several high-rise buildings were damaged.

Pronin later said that due to damage to power lines, some 53,000 private and 2,400 industrial consumers faced power cuts. Earlier, Ukraine's air force announced a missile alert for the region.

There has been no immediate response from Russia yet.

(With input from Reuters)