Massive explosions have hit the western city of Lviv in Ukraine with reports of up to "10 blasts in succession", as Russia continues it attack on the country.
Images on social media show the sky above Lviv lit up with the apparent blasts on Tuesday morning.
There has been no word on casualties following the explosions, which occurred just before 1 am local time.
Some reports said about eight to 10 blasts occurred in quick succession.
Ukraine MP Lesia Vasylenko wrote: "Lviv is under heavy attack right now. Friends say it has never been this loud. This is WEST #Ukraine. Very close to Poland."
While Kiev Independent's Illia Ponomarenko wrote: "And almost immediately following the Azovstal rescue — a massive Russian missile attack upon Lviv."
On Sunday a missile strike hit some military infrastructure in Lviv, the region's Governor Maxim Kozitsky said in a post on the Telegram messaging app.
"Four enemy missiles hit one of the military infrastructures in the Lviv region," Kozitsky said.
"The object is completely destroyed. According to preliminary information, there are no casualties. No one sought medical help."
The regional "West" Air Command of Ukraine's Air Force said in a social media post that several missiles were fired from the Black Sea at the Lviv region. Two of the missiles were destroyed before hitting targets, it said.
Up until now the Russian invasion has concentrated in the east of Ukraine with occasional shelling of cities on the western side of the country.
Many Ukrainians have fleed their towns and cities for Lviv for its relatively safer location.
The latest attack on Lviv comes after Ukrainian fighters appeared to cede control of the besieged port of Mariupol after months of bombardment.
Troops have been evacuated with Ukraine's deputy defence minister saying 53 injured troops from the Azovstal steelworks were taken to a hospital in the Russian-controlled town of Novoazovsk, 20 miles to the east.
Another 211 people were taken to the town of Olenivka, in an area controlled by Russian-backed separatists, Deputy Defence Minister Anna Malyar said.
All of the evacuees will be subject to a potential prisoner exchange with Russia, she added.
Reuters saw five buses carrying troops from Azovstal arrive in Novoazovsk late on Monday. Some of the evacuated troops were wounded and carried out of the buses on stretchers. Some 600 troops were believed to have been inside the steel plant.
"We hope that we will be able to save the lives of our guys," Ukraine President Volodymyr Zelenskiy said in a late night address. "There are severely wounded ones among them.
They're receiving care. Ukraine needs Ukrainian heroes alive."
Ukraine's military said it had "ordered the commanders of the units stationed at Azovstal to save the lives of the personnel" and that troops there had fulfilled their combat mission.
