The U.S. Department of Defense announced $400 million in new military aid for Ukraine, including eight folding armored bridges for the first time.

This is the Biden administration's 33rd drawdown of equipment from Department of Defense inventories for Ukraine.

-ABC News' Luis Martinez

Around 5,000 people still remain in the Ukrainian city of Bakhmut, including 37 children, according to Donetsk Oblast Regional Governor Pavlo Kyrylenko.

The losses in Bakhmut stand at the rate of one Ukrainian solider to seven Russian soldiers, Secretary of the National Security and Defense Council Oleksii Danilo said on TV.

Russian forces fighting for control of Bakhmut intensified shelling at access roads to the west, making it harder for Ukrainian forces to move in and out, Reuters reported Friday.

-ABC News' Yulia Drozd

The State Department said Friday that Secretary of State Antony Blinken spoke with Ukrainian Foreign Minister Dmytro Kuleba about the brief conversation that took place at the G-20 summit between Blinken and Russian Foreign Minister Sergei Lavrov.

"The Secretary underscored to Foreign Minister Kuleba the United States’ enduring support for Ukraine as it defends itself against Russia’s brutal attacks, including the ongoing targeting of civilian infrastructure and resulting civilian casualties," State Department spokesman Ned Price said in a statement.

-ABC News' Shannon Crawford

The U.S. will announce another assistance package for Ukraine on Friday, White House spokesperson John Kirby announced Thursday afternoon, but did not detail the exact size of this next round of support.

"You'll see us tomorrow, just unilaterally, the U.S. will have another round of assistance for Ukraine coming tomorrow. And it will include mostly ammunitions and munitions that the Ukrainians will need for the systems that they already have, like the HIMARS and the artillery."

The new aid comes as President Joe Biden meets with German Chancellor Olaf Scholz at the White House Friday to discuss ongoing support for Ukraine as Russia's invasion continues.

Kirby said the leaders would discuss the "kinds of capabilities that Ukraine continues to need in the weeks and months ahead."

He also said this will be a "true working visit" between Biden and Scholz and they are expected to discuss "recent engagements with Ukrainian officials, including the President's trip to Kyiv and meeting with President Zelenskyy, as well as Chancellor Schultz’s meeting with President Zelensky in Paris last month."

-ABC News' Justin Gomez

Russia’s Wagner mercenary group said it will retreat from Bakhmut because of severe shortages in ammunition, according to Yevgeny Prigozhin, the group's leader. He said his forces would withdraw on May 10, blaming Russia’s defense ministry for the retreat.

Wagner has played a crucial role for months in the fighting for Bakhmut, sustaining huge casualties. The announcement and the suggestion of bitter infighting within Russia’s military forces signals division and disorganization just as Russia is bracing for a major Ukrainian counteroffensive.

Prigozhin said he was taking the decision in retaliation against Russia’s military leadership, which he accused of deliberately starving his troops of ammunition because they are jealous of Wagner’s success.

Prigozhin and Russia’s defense ministry have been in a one-sided public feud for months. Prigozhin claims it's now reached a breaking point, delivering a blistering attack on Russia's senior military command in the video announcing the withdrawal. He accused them of being "cowards" and of denying Russians a victory in Bakhmut because of their "petty envy."

Ukrainian military officials said they did not believe Wagner forces would retreat from Bakhmut, suggesting they believed his announcement was an attempt to excuse his failure to seize the city by May 9 as he pledged. A spokesman for Ukraine's eastern command, Sergiy Cherevatyi, said Wagner was running out of fighters, not ammunition.

-ABC News' Patrick Reevell