<Anchor>
The Russian army used a self-destruct drone to attack the Ukrainian capital Kiiu again.
Several buildings collapsed, killing four people, including a pregnant woman.
This is reporter Kang Min-woo.
<Reporter>
Ukrainian air defense missiles are fired along with an air raid warning, and smoke rises from the building.
Residents rush to nearby shelters.
Elsewhere, military and police fire rifles into the sky, narrowly shooting down self-destruct drones.
On the 17th local time, four people were killed and three others were injured in the Russian self-destruct drone attack that occurred about four times during rush hour.
Ukraine has reacted furiously, calling for Russia to be expelled from all international organizations.
Enlarging an image
Kiiwu Mayor Vitali Klicichko said two of the four killed were young couples, including six-month-olds, calling it a terrorist attack.
[Vitaly Klitschko / Mayor of Kiiu, Ukraine: The Russian attack destroyed more than 200 apartments and killed many civilians and innocent people.
Russia is a terrorist country.]
In Sumi Province, northeast of Ukraine, a substation was hit by a Russian rocket, killing four people and causing a power outage.
After the explosion of the Krem Bridge on the 8th, Russia is conducting a massive air strike targeting the electricity and water infrastructure of major Ukrainian cities, including Kiiu.
Tensions in the Ukrainian war are escalating as NATO begins a nuclear deterrence exercise that will last until the 30th.
Meanwhile, 108 Ukrainian women returned from exchanges of prisoners of war with Russia.
Many of them are known to have been captured while resisting at the Azoustal Works, the last stronghold of the southern port city of Mariupol.