NATO Secretary-General Jens Stoltenberg held a press conference with Ukrainian President Volodymyr Zelenskyy in Kyiv, to highlight the more than €150 billion of support to Ukraine since Russia launched its invasion.

"Allies are now delivering more jets, tanks, and armored vehicles, and NATO's Ukraine fund is providing urgent support," he said in a statement. "All of this is making a real difference on the battlefield today."

While in Ukraine, the secretary-general visited Bucha and paid his respects to the victims of Russian atrocities.

He also laid a wreath at the Wall of Remembrance of the Fallen for Ukraine, paying tribute to all those who have lost lives or suffered wounds in defense of their homeland.

"Ukraine’s rightful place is in the Euro-Atlantic family. Ukraine’s rightful place is in NATO. And over time, our support will help to make this possible," Stoltenberg said.

-ABC News' Will Gretsky

Just a week after the Pacific Fleet was ordered to stage surprise combat drills, Russian President Vladimir Putin fired the commander of the Russian Pacific Fleet, Sergei Avakyants.

Earlier, Putin praised the Pacific Fleet maneuvers and said that the Navy could be used "for the resolution of conflicts anywhere."

"He turned 65 on April 6. He is still on the Russian Defense Ministry's staff. With the consent of the Russian Defense Ministry, he will head a central body overseeing military sports and patriotic education centers, created on the orders of the [president]," the press service said.

-ABC News' Will Gretsky

Anne Hidalgo, the mayor of Paris, which is hosting the 2024 summer Olympics, told Ukrainian President Volodymyr Zelenskyy that Russian athletes "cannot be accepted in Paris," if the war with Ukraine is still ongoing when the games begin.

"Paris is the capital of human rights," Hidalgo said in a statement. "We are trying to convince athletes, international federations and countries. We stand with you."

Hidalgo and Vasco Cordeiro, the president of the European Committee of the Regions, met with Zelenskyy as part of the International Summit of Cities and Regions Thursday.

Zelenskyy thanked Hidalgo for her support and presented her with Ukraine's "Rescuer City" honorary award.

-ABC News' Max Uzol and Ellie Kaufman contributed to this report.

Russia has fired nearly 80 missiles at Kherson in 24 hours amid ongoing shelling, a local official said.

"For the previous day, we have recorded 79 shellings throughout our territory," First Deputy Chairman of the Kherson Regional Council Yuriy Sobolevskyi said on Telegram earlier Wednesday. "About 300 rounds of ammunition were used by the enemy."

At least two people have sought medical attention due to shelling injuries, according to Sobolevskyi, who noted that the "shelling continues."

-ABC News' Will Gretsky

Russia's FSB intelligence agency said on Thursday it had detained a journalist working for The Wall Street Journal on spying charges.

Russian state media cited an FSB statement saying Evan Gershkovich was detained in Ekaterinburg, a city in central Russia, and accusing him of collecting "state secrets" on an enterprise belonging to Russia's military industrial complex on behalf of the United States.

A criminal case has been opened against him, the officials said.

"It is established that Evan Gershkovich, acting on the instruction of the American side, was collecting information consisting of state secrets, about the activity of one of the enterprises of the Russian military industrial complex. He was arrested in Ekaterinburg during an attempt to receive secret information," Russian media said, quoting FSB officials.

Earlier reports from local media said that Gershkovich had been in Ekaterinburg reporting on the Wagner private military company.

Gershkovich is a reporter for the WSJ covering Russia, Ukraine and the former Soviet Union. He previously reported for Agence France-Presse and The Moscow Times, according to his WSJ profile. He also served as a news assistant at The New York Times.

-ABC News Tanya Stukalova and Patrick Reevell