Updated Mar 23, 2022 - World

In photos: Russia's invasion of Ukraine, four weeks in

Firefighters sit amid debris in the area of a research institute, part of Ukraine's National Academy of Science, after a strike by drones that killed at least one, in northwestern Kyiv, on March 22.
Firefighters near debris at Ukraine's National Academy of Science, after a strike by drones killed at least one person in northwestern Kyiv on March 22. Photo: Fadel Senna/AFP via Getty Images

Ukraine has withstood Russia's unprovoked invasion for four weeks, as the intensifying conflict teeters on a new stalemate phase.

The big picture: The invasion has triggered an exodus of more than 3.5 million refugees and displaced millions more within Ukraine. Russian troops haven't captured any major city and are now further stalled by Ukrainian forces and flooding near Kyiv.

 Nurses cry as they arrive to see their hospital after Russian shelling hit the mental hospital of Mykolaiv, southern Ukraine, on March 22.
Nurses cry as they arrive to see their hospital after Russian shelling inf Mykolaiv, southern Ukraine, on March 22. Photo: Bulent Kilic/AFP via Getty Images
A Ukrainian evacuee hugs a child in the train station in Przemysl, near the Polish-Ukrainian border, on March 22, 2022.
A Ukrainian evacuee hugs a child in the train station in Przemysl, near the Polish-Ukrainian border, on March 22. Photo: Angelos Tzortzinis/AFP via Getty Images
burning and destroyed apartment buildings in Mariupol, Ukraine on March 22.
Burning and destroyed apartment buildings in the Ukrainian port city of Mariupol on March 22. Satellite image: Maxar Technologies
A girl who seriously injured during Russian attacks receives treatment at regional children's hospital in Zaporizhzhia, Ukraine on March 22.
A girl who was seriously injured during Russian attacks receives treatment at a regional children's hospital in Zaporizhzhya, Ukraine on March 22. Photo: Stringer/Anadolu Agency via Getty Images
 A view from a heavily damaged building after Russian attacks in Kharkiv, Ukraine on March 22.
A Kharkiv building on March 22 after being damaged by Russian attacks. Photo: Wolfgang Schwan/Anadolu Agency via Getty Images
Ukrainian police officers inspect a downed Russian drone in the area of a research institute, part of Ukraine's National Academy of Science, after a strike, in northwestern Kyiv, on March 22.
Ukrainian police officers inspect a downed Russian drone in the area of a research institute, part of Ukraine's National Academy of Science, after a strike, in northwestern Kyiv, on March 22. Photo: Fadel Senna/AFP via Getty Images

Go deeper: Axios explains Ukraine

Editor's note: This article has been updated with more photos.

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