The U.S. is continuing to push for consular access for Evan Gershkovich, the Wall Street Journal reporter detained in Russia, White House press secretary Karine Jean-Pierre said during a briefing Tuesday, adding that "this is a priority" for President Joe Biden.

Asked how worrying it was the U.S. still didn't have consular access, Jean-Pierre said, "We're concerned."

"We're taking this very seriously," Jean-Pierre said, pointing to Secretary Antony Blinken’s conversation with Russian Foreign Minister Sergey Lavrov over the weekend. "We're working diligently, very hard to get a counselor to Evan.”

Jean-Pierre declined to say whether the U.S. was close to determining that Gershkovich was being "wrongfully detained" or provide a timeline of when that determination may happen, saying the State Department's process "is currently ongoing." That classification would allow the federal government to use more resources to try to free him.

-ABC News' Ben Gittleson

The Pentagon announced $2.6 billion in new security assistance for Ukraine on Tuesday.

The aid will come in two forms: a $500 million presidential drawdown authority package pulling from existing U.S. stockpiles (the 35th such package for Ukraine); and $2.1 billion from Ukraine Security Assistance Initiative funds to procure new equipment.

Both the PDA and USAI packages are largely focused on providing munitions for Ukraine, including additional Patriot air-defense missiles and HIMARS ammunition. They also include anti-drone weapons, vehicles, communications equipment, spare parts and more.

-ABC News' Matt Seyler

At least 501 children have been killed and almost 1,000 others injured since February 2022, Catherine Russell, executive director of UNICEF, tweeted Monday.

"Another tragic milestone for Ukraine's children and families," she wrote, adding: "This is just the UN verified number. The real figure is likely far higher, and the toll on families affected is unimaginable."

The Russian State Duma will arrest anyone who agrees with the International Criminal Court's arrest warrant for Russian President Vladimir Putin accusing him of committing war crimes, the State Duma said on its official Telegram channel Monday.

Russia will imprison those who "call for the implementation of the decision" of the International Criminal Court "on the arrest of Vladimir Putin accused of war crimes," the State Duma of the Russian Federation said.

"The profile committees of the State Duma are preparing amendments to the Federal Law 'On Security,' which will prohibit the activities of the International Criminal Court and international bodies directed against the Russian Federation on our territory and its citizens," Chairman of State Duma Vyacheslav Volodin said.

The ICC issued an arrest warrant for Putin for war crimes in March, accusing him of personal responsibility for the abductions of children from Ukraine.

-ABC News' Oleksiy Pshemyskiy

The United States announced an additional $2 billion military aid package for Ukraine on Friday, as the Eastern European country marks the one-year anniversary of Russia's full-scale invasion.

The new aid package includes more missiles for Ukraine's U.S.-supplied High Mobility Artillery Rocket Systems (HIMARS), additional 155mm artillery ammunition, more Switchblade one-way drones and other military equipment, according to the U.S. Department of Defense.

"One year into a war of aggression waged by a permanent member of the U.N. Security Council, our allies and partners worldwide stand united and resolute," U.S. Secretary of Defense Lloyd Austin said in a statement. "Putin's reckless, illegal war is not just an all-out assault on Ukraine's sovereignty and a historic threat to European security. It is also a direct attack on the system of rules, institutions, and laws that the world built at such great cost after World War II -- a system that rejects aggression and respects the rights of all countries, big and small."

The additional aid is being provided under the Ukraine Security Assistance Initiative (USAI) plan, meaning this equipment and artillery have to be made from scratch before being delivered, which will take time. This is different from the other aid packages that come from existing U.S. military stockpiles and get delivered faster.

With the new aid package, the Biden administration has now provided $31.8 billion in assistance to Ukraine since Russia's war began on Feb. 24, 2022.

"Putin thought that Ukraine’s defenses would collapse, that America's resolve would falter, and that the world would look the other way. He was wrong," Lloyd said. "One year later, Ukraine's brave defenders have not wavered, and neither has our commitment to support them for as long as it takes. Despite the Kremlin's campaign of cruelty, the people of Ukraine have shown stunning bravery, skill, and fortitude. Today and every day, we stand by the courageous Ukrainians fighting to defend their country, and we mourn with those who have lost their loved ones in Moscow's monstrous and unnecessary war."

"Difficult times may lie ahead, but let us remain clear-eyed about what is at stake in Ukraine," he added. "And let us remain united in purpose and in action -- and steadfast in our commitment to ensure that a world of rules and rights is not replaced by one of tyranny and turmoil."

-ABC News' Luis Martinez