A series of explosions were heard in central Lviv around 12:45 a.m. local time, shortly after air alarm sirens had sounded in the city.

Lviv Mayor Andriy Sadovyi, in a post on his Facebook page, said he could not confirm any information about possible missile strikes in Lviv itself.

Russian missiles targeted western Ukraine overnight damaging railway infrastructure close to the border with Poland, according to the head of the Lviv Regional Military Administration Maksym Kozytsky.

In the first attack on Lviv on March 13, more than 30 people were killed at the Yavoriv military facility.

Sites in Lviv have also been hit in Russian missiles strikes, including an aircraft parts plant, a fuel depot and several electrical substations.