A hole in the roof of a tram is seen at a depot, amid Russia's invasion of Ukraine, in Kharkiv, Ukraine, March 14, 2022.

An interior view shows an apartment inside a residential building damaged by an airstrike, as Russia’s attack on Ukraine continues, in Kharkiv, Ukraine, March 15, 2022.

Firefighters work at the site of a fire at the Barabashova market, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 17, 2022.

Rescuers work at a site of a warehouse storing products burned after shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine March 16, 2022.

A damaged van is seen outside a tram depot, amid Russia's invasion of Ukraine, in Kharkiv, Ukraine, March 14, 2022.

Black smoke rises into the sky from the Barabashovo market – one of the largest markets in Eastern Europe covering an area of more than 75 hectares – which was reportedly hit by shelling, in Kharkiv, March 17, 2022, amid Russia's ongoing invasion of Ukraine.

A firefighter works at a site of a fire, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine March 16, 2022.

A man gestures outside a school damaged by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 16, 2022.

Damaged military ammunition in a military truck in Kharkiv, Ukraine, March 16, 2022. NATO Secretary-General Jens Stoltenberg made it clear Tuesday that the 30-nation military alliance is set to radically change its security stance in Europe in response to Russia's war on Ukraine.

Rescuers work at a site of a warehouse storing products burned after shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, March 16, 2022.

People walk past a school damaged by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 16, 2022.

In this handout photo released March 18, 2022, Rescuers work amid the rubble of a residential building destroyed by shelling, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine.

Rescuers work at the site of the National Academy of State Administration building damaged by shelling in Kharkiv, Ukraine, March 18, 2022.

A fire burns at the Barabashova market, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 17, 2022.

Smoke rises over the city after a shelling amid Russia’s attack on Ukraine, in Kharkiv, Ukraine, March 17, 2022.

Ukraine's biggest market Barabashovo is seen on fire after a shelling amid Russia’s attacks, in Kharkiv, Ukraine, March 17, 2022.

Rescuers work on the remains of a building damaged by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 18, 2022.

Ukraine's biggest market Barabashovo burns after being hit by shelling amid Russia’s attacks, in Kharkiv, Ukraine, March 17, 2022.

A person walks past a building damaged by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 18, 2022.

Rescuers work at a site of the National Academy of State Administration building damaged by shelling in Kharkiv, Ukraine, March 18, 2022.

A view of a building and cars damaged by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 18, 2022.

A damaged military vehicle sits in Kharkiv, Ukraine, March 16, 2022.

Apartments damaged by shelling, in Kharkiv, Ukraine, March 13, 2022.

An administrative building in Ukraine's Kharkiv after it was bombed by Russian troops, March 14, 2022.

Local resident Teimur Aliev holds a guitar, sitting next to items that he delivers to residents in need, amid the Russian invasion, in Kharkiv, Ukraine, in this undated handout image obtained March 12, 2022.

Black smoke rises into the sky from the Barabashovo market – one of the largest markets in Eastern Europe covering an area of more than 75 hectares, which was reportedly hit by shelling, in Kharkiv, Ukraine, March 17, 2022.

This Maxar satellite image taken and released on March 16, 2022, shows fires and damage in a residential area in Kharkiv, Ukraine.

A building damaged by an airstrike, as Russia's attack on Ukraine continues, in central Kharkiv, Ukraine, March 14, 2022.

Rescue workers stand near a heavily damaged building, amid Russia's invasion of Ukraine, in Kharkiv, Ukraine, March 14, 2022.

A burned-out car is seen near a damaged building, amid Russia's invasion of Ukraine, in Kharkiv, Ukraine, March 14, 2022.

Rescuers work next to a building damaged by an airstrike, as Russia's attack on Ukraine continues, in central Kharkiv, Ukraine, March 14, 2022.

A man stands next to a Foxtrot store that was destroyed by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 15, 2022.

A view of the interior of a damaged kindergarten, amid Russia's invasion of Ukraine, in Kharkiv, Ukraine, March 14, 2022.

A view shows the damaged interior of a building designed by architect Oleksii Beketov, after it was hit during an attack as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine, March 15, 2022.

Rescuers work next to a building damaged by an airstrike, as Russia's attack on Ukraine continues, in central Kharkiv, Ukraine, March 14, 2022.