The western Ukrainian city of Lviv is experiencing power outages following a Russian air strike, Mayor Andriy Sadovy said on Telegram.
He said two power substations were damaged as a result of the missile strike, adding that there is no electricity in part of the city.
In a social media post, Mayor Sadovy urged people to stay in bomb shelters.
Trains have stopped at the entrance to Lviv and Russian military have shelled railway substations, causing delays, according to a Ukrainian railways statement.
“Due to enemy shelling of railway substations, a number of trains will run with a delay,” it said, asking people not to leave shelters during air raid alarms.