Russia's invasion of Ukraine is depicted in photographs.

Russia launched an invasion into Ukraine in the early hours of Thursday morning.

Reports of explosions have been received in various cities of Ukraine, including Kyiv, Odessa, Kharkiv, and Mariupol, as well as the first casualties from the military attack.

In Kyiv, Ukraine, air raid sirens have sounded and a stay-at-home order has been issued. Ukraine's airspace has been closed to civilian flights and classified as a conflict zone.

On Thursday, Russian President Vladimir Putin declared that Russia was launching a "special military operation" to demilitarize Ukraine. As a result, NATO, the world's most powerful military alliance, will deploy more troops to eastern Europe. Western nations have condemned the attack.

Russian military hardware moved across Crimea

Firefighters are tackling a blaze on a building in Chuguiv, Ukraine, following explosions in the town.

Girls take refuge in a metro station in Kyiv

A rocket's body remained trapped in an apartment following recent shelling in the northern outskirts of Kharkiv.

Residents attempt to flee Kyiv

A Ukrainian serviceman rides atop a military vehicle in central Kyiv

People board a bus as they attempt to evacuate Kyiv

After authorizing the military operation, people queue at an ATM in Lviv.

In Armyansk, northern Crimea, a serviceman is carried on a stretcher by police officers.

Ukrainian servicemen get ready to repel an attack in Ukraine’s Luhansk region

People flee from Ukraine at the Hungarian-Ukrainian border

Rescuers work at the crash site of the Ukrainian Armed Forces’ Antonov aircraft

Military helicopters apparently Russian, fly over the outskirts of Kyiv, Ukraine

Russian soldiers travel to the Perekop border checkpoint on a truck.

In Moscow, a man is held by police officers during a demonstration opposing Russia's invasion of Ukraine.

In the White House Situation Room, a meeting of the National Security Council was held by President Biden.

A column of army trucks approaches the Chongar checkpoint on the Ukrainian border

Cars sit at a standstill as people try to leave Kyiv

A Ka-52 helicopter gunship was spotted in a field following a compulsory landing near Kyiv.

No aircrafts are visible on the FlightRadar24 website following the Russian attack in Ukraine.

In Kolkata, a man views the conflict between Russia and Ukraine on TV news.

At a Ukrainian military facility near Mariupol, a damaged radar, a vehicle, and equipment are visible.

An airstrike damaged an apartment complex in the city of Chuhuiv, resulting in the sighting of a wounded woman.

A person walks past luggage carts at Boryspil International Airport

Armoured vehicles move across the town of Armyansk