<Anchor>
Russia also attacked all of Ukraine with missiles last night.
Russia also conducted a nuclear attack simulation exercise, connecting reporters on the Polish-Ukrainian border.
Correspondent Jang Seon-i, there was also a missile attack last night (the 4th)?
<Reporter>
Yes, following the missile attack on a power plant in the Lviv region of western Ukraine, the Russian military is intensifying air strikes across Ukraine.
Last night, it was reported that missile attacks were also carried out in the central city of Cherkasi and in the southeastern part of Zaporiza.
[Olexandr Motuzianik / Spokesperson of Ukrainian Ministry of Defense: Russian forces have launched tactical and strategic bombers to strike targets in Kharkiv, Donetsk, Kihorad, Odessa, Lviv and Zakharpathia.
There have been nearly 50 airstrikes.]
In recent days, six railroads in the Midwest, including Lviv, have also been hit by missiles.
Russia's main target for railway facilities is interpreted as an attempt to prevent the spread of various weapons provided by the West.
<Anchor>
And the situation in the southern Ukrainian city of Mariupol is not good, right?
<Reporter>
Yes, the Russian army, using tanks and fighters, attacked the Ukrainian Mariupol Azoustal Works, where hundreds of civilians are being evacuated.
The United Nations and the International Committee of the Red Cross evacuated more than 150 civilians on the 1st, but hundreds of civilians remain.
[Badim Wojchenko / Mayor of Mariupol: Unfortunately, today (local time 4th), contact with the Ukrainian army in the steelworks was cut off.
There is no way to know what's going on or whether it's safe.]
Russia also announced that it would be a ceasefire for several days so that civilians could be evacuated from the Azoustal Works. It has been said that a passage out of the factory will be opened, but it is unclear whether this will actually be implemented.
<Anchor>
How is Russia's nuclear attack simulation exercise in the Baltic Sea being interpreted?
<Reporter>
The Russian military conducted a simulation exercise to attack a hypothetical enemy with a nuclear warhead missile in Kaliningrad, off the coast of the Baltic Sea.
This was a simulation exercise of firing a mobile Iskander ballistic missile equipped with a nuclear warhead.
Kaliningrad, where the training took place, is a Russian offshore territory on the Baltic Sea coast between Poland and Lithuania.
Russia invaded Ukraine to join NATO, but on the contrary, as neutral countries such as Finland and Sweden are seeking to join NATO, Russia's level of nuclear provocation continues to rise.
(Video coverage: Lee Jae-young, Cho Seung-ho, video editing: Kim Ho-jin)