Belarusian President Alexander Lukashenko will travel to Russia on Friday for a meeting with his close ally and Russian counterpart, Vladimir Putin.

The two leaders will meet in Moscow where they "will discuss key issues concerning bilateral relations, the development of union cooperation and economic cooperation in conditions of sanctions pressure," according to the Pool of the First Man channel on Telegram, which is reportedly linked to Belarusian state media.

"The situation in the region and in Ukraine is on the agenda as well," the channel said.

Western Union announced Thursday that it is suspending its operations in Russia and close ally Belarus amid the Russian invasion of neighboring Ukraine.

The Denver-based money-transfer and payments company said in a statement that it "stands with the world in condemning the unprovoked and unjustified invasion of Ukraine."

"All of us share the shock, disbelief, and sadness around this tragedy and humanitarian disaster," the company added. "Our hearts go out to the people of Ukraine and to our colleagues, customers, agents, and partners who have been impacted."

Company leadership have engaged in extensive dialogue with a wide variety of stakeholders "in an earnest effort to arrive at the right decision regarding our services in Russia and Belarus," according to Western Union.

"We have thoroughly evaluated internal and external considerations, including the consequences for our valued teammates, partners, and customers," the company said. "Ultimately, in light of the ongoing tragic impact of Russia’s prolonged assault on Ukraine, we have arrived at the decision to suspend our operations in Russia and Belarus."

-ABC News' Christine Theodorou

Vice President Kamala Harris announced Thursday that the U.S. will be giving $50 million in humanitarian assistance to the United Nations World Food Program.

Harris made the announcement during a joint press conference after she met with Poland's President Andrzej Duda.

USAID will deliver the funds to the WFP, which go toward providing emergency food aid, such as high-energy biscuits, to refugees and supporting the WFP's operations to get aid into Ukraine, according to a release from USAID.

Including the aid money announced Thursday, the U.S. has provided $107 million in humanitarian aid since Russia's war against Ukraine started, according to USAID.

In the press conference, Harris and Duda spoke about the unified partnership between the U.S. and Poland on the war in Ukraine.

"We will do everything together in partnership, in solidarity, to support what is necessary this very moment in terms of the humanitarian and security needs of Ukraine and the Ukrainian people," Harris said.

Harris and Duda also condemned the Russian attack on a maternity hospital which killed 3 people and wounded 17, according to Ukrainian President Volodymyr Zelenskyy.

"We have been witnessing for weeks, and certainly just in the last 24 hours, atrocities of unimaginable proportions,” Harris said.

Duda went as far as saying if hospitals and residential buildings are bombed where there are no military installations, "this is an act of barbarity baring the features of a genocide."

“We cannot accept such military activities that bare the characteristics of genocide," Duda said.

Harris also announced that the U.S. has delivered Patriot missile systems to Poland, which it had promised earlier this week, and noted the recent deployment of 4,700 U.S. troops to Poland.

-ABC News' Molly Nagle and Conor Finnegan

At least 549 civilians, including 41 children, have been killed in Ukraine since Russian forces invaded on Feb. 24, according to the latest figures from the Office of the United Nations High Commissioner for Human Rights (OHCHR).

Meanwhile, at least 957 civilians, including 52 children, have been injured, OHCHR figures show.

The tallies are civilian casualties that occurred in Ukraine from Feb. 24 to March 9 and have been verified by OHCHR, which cautioned that "actual figures are much higher."

-ABC News' Christine Theodorou

U.S. Secretary of State Antony Blinken crossed the border into Ukraine Saturday after meeting with Ukrainian Foreign Minister Dmytro Kuleba at the Korczowa Border Crossing Point.

"The entire world stand with Ukraine," Blinken said, and Kuleba added that he hopes Ukrainians will see this as a "clear manifestation that we have friends who literally stand by us."

Blinken said the sanctions imposed so far against Russia are "producing very, very concrete results" and that the pressure will "grow" until this "war of choice is brought to an end."

When asked directly about helping Kuleba with more firepower, Blinken said, "the support for Ukraine not only has been unprecedented, not only is going to continue, it's going to increase."

Kuleba said Ukraine "appreciates" sanctions that have been announced in the last week, but that more economic and political pressure and "necessary weapons," would "save many lives in Ukraine... many sufferings will be avoided."

Kuleba also said that they are “satisfied" with already arranged supplies of anti-tank weapons and ammunition, but that “it’s no secret” they still want fighter jets and air defense systems.

He also thanked the U.S. for sending stingers, and said they were used on Saturday.

"Just today we shot down three Russian attack aircrafts, which were bombing our cities with the use of stingers but we need -- so to say -- big air defense systems to ensure the safety of our skies. If we lose the skies, there will be much, much more blood on the ground,"Kuleba said.

In response to questions about NATO’s refusal to impose a no-fly zone over Ukraine, Kuleba said it’s a "sign of weakness," but stayed optimistic that they will change their minds.

"The time will come," he said.

-ABC News' Conor Finnegan and Justin Gomez