The International Criminal Court deployed a team of 42 investigators forensic and support personnel to Ukraine to advance investigations into crimes falling under ICC jurisdiction and provide support to Ukrainian authorities.

"This represents the largest ever single field deployment by my office since its establishment," ICC prosecutor Karim Khan said Tuesday.

Khan said 21 countries have offered to send national experts to his office and 20 states have committed to provide financial contributions.

"I look forward to working with all actors, including survivor groups, national authorities, civil society organisations and international partners, in order to accelerate this collective work moving forward," Khan said.

-ABC News' Christine Theodorou

Commerce Secretary Gina Raimondo told reporters Tuesday that the export controls the U.S. and other countries have put on Russia are working, including compliance from China.

"These export controls are having a strong and significant effect," Raimondo said Tuesday.

Raimondo returned from Paris where she co-chaired the U.S.-EU Trade and Technology Council Ministerial Meeting. She said there was consensus and partnership amongst countries with respect to cutting off Russia's access to "critical technologies."

"We've had extensive discussions on export controls," she said.

The Commerce Department and 37 other countries have limited semiconductor chips that can be exported to Russia, which help not only everyday Russian carmakers, but the Russian military build and use military equipment.

"You've all heard the anecdotal stories of Russia's inability to continue to produce tanks and auto companies shutting down but overall U.S. exports to Russia have decreased over 80%, between February and a week ago," she said. "So we essentially stopped sending high tech to Russia, which is what they need for their military."

Even China, Raimondo said, stopped shipping tech products such as laptops to Russia by 40% compared to a year ago.

Asked whether she trusts the Chinese data, Raimondo said it is "consistent" with what the Ukrainians are seeing on the ground.

"We are not seeing systematic efforts by China to go around our export controls," she said. "So yes, I think this is probably quite accurate."

-ABC News' Luke Barr

President Joe Biden will host Prime Minister Magdalena Andersson of Sweden and President Sauli Niinistö of Finland at the White House on Thursday as the two countries seek to join NATO, the White House announced Tuesday.

The three leaders will "discuss Finland’s and Sweden’s NATO applications and European security," according to a statement from White House press secretary Karine Jean-Pierre.

-ABC News' Molly Nagle

A video released Sunday by a pro-Russian separatist commander showed a shower of bright-burning munitions cascading down on the Azovstal steel plant in the Ukrainian port city of Mariupol, where a few hundred Ukrainian fighters remain holed up weeks after the city fell into the hands of Russian forces.

The video shows projectiles bursting into showers of burning matter which then explode on contact with the ground or buildings.

ABC News has not been able to verify the authenticity of the video. Reuters was able to verify the location of the aerial footage to the Azovstal steel plant, but was not able to confirm the date and time the video was taken.

The footage was posted on Telegram by Alexander Khodakovsky, a commander of the pro-Russian self-proclaimed Republic of Donetsk.

"If you didn't know what it is and for what purpose -- you could say that it's even beautiful," Khodakovsky said in a message that accompanied the video.

It was not immediately clear what type of munitions were seen in the video.

Khodakovsky could not be reached for comment.

Ukrainian military officials said there was no letup on Sunday in Russia's bombardment of the steel works plant.

Jalina Porter, the State Department's deputy spokesperson, is responding to the Russian attack at a Ukraine train station that killed at least 50, saying, "We can no longer be surprised by the Kremlin's repugnant disregard for human life."

Five children were among those killed when Russian rockets struck the station in Kramatorsk in Donetsk Oblast on Friday morning, according to Ukraine's state-owned railway company. At least 100 people were injured, according to Donetsk Oblast Gov. Pavlo Kyrylenko.

Russia has denied involvement in the attack, which occurred as "thousands" of civilians fleeing the Russian invasion were at the train station waiting to be taken to "safer regions of Ukraine," according to Kyrylenko.

"Civilians are killed when they stay in their homes, and they're killed when they try to leave," Porter said. "Actions like these demonstrate why Russia did not belong on the U.N. Human Rights Council, and they also reinforce the U.S. assessment that members of Russian forces are committing war crimes in Ukraine."

Porter declined to say if the department considers the train station attack a war crime, saying, "Assessing individual criminal liability in specific cases is the responsibility of courts, as well as other investigatory bodies. But as the secretary, Secretary [of State Antony] Blinken, has said, 'Those responsible for war crimes and other atrocities committed in Ukraine will be held to account.'"

-ABC News' Conor Finnegan