A video of a Ukrainian father tearfully saying goodbye to his daughter has circulated online, giving those on the internet a closer look at the people personally affected by the Russian invasion into the eastern European country. The brief clip shows a distressed man who seems to be putting his wife and daughter on a train to safety as he stays behind. 

According to TMZ, the dad tells his daughter that he loves her as he puts a hat on her head and breaks down in her arms. He asks for her hand one more time before he says his final goodbye. His eyes stay on the bus as it pulls away out of sight.

Over 50,000 Ukrainian refugees have fled the country in response.

Following the initial invasion of Ukraine's capital, United Nations High Commissioner for Refugees Filippo Grandi revealed large numbers of Ukrainian citizens fled the country as refugees.

"More than 50,000 Ukrainian refugees have fled their country in less than 48 hours — a majority to Poland and Moldova — and many more are moving towards its borders. Heartfelt thanks to the governments and people of countries keeping their borders open and welcoming refugees," Grandi tweeted Friday.

On Friday, Ukrainian president Volodymyr Zelensky declared the country is under martial law, preventing men between the ages of 18 to 60 from leaving the country.

"This regulation will remain in effect for the period of the legal regime of martial law. We ask the citizens to take this information into consideration," Zelensky said, CNN reports.

President Joe Biden imposes sanctions on Russia.

In the U.S., President Joe Biden has responded to Russia's attack on Kyiv by placing sanctions on the Russian government's technology as well as Russian banks in the hopes of preventing Russian President Vladimir Putin from severely hindering the country's resources, according to CNN.

"Putin is the aggressor. Putin chose this war. And now he and his country will bear the consequences," Biden said in Thursday's address, CNN reports. He noted that the sanctions will "impose severe cost on the Russian economy, both immediately and over time."

"The threat of the sanctions … imposing the sanctions and seeing the effect of the sanctions are two different things," Biden continued. "He's going to begin to see the effect of the sanctions."

The president added that the measures would take time to become fully effective.

"It's going to take time," Biden said. "We have to show resolve so he knows what is coming. And so the people of Russia know what he's brought on them. That's what this is all about."

He went on to promise that the U.S. will not be sent to Europe to engage in the conflict.

"Our forces are not and will not be engaged in the conflict," he said. "Our forces are not going to Europe to fight in Ukraine but defend our NATO allies and reassure those allies in the east."