A Ukrainian drone hit a Tamanneftegaz fuel tank in the Port of Taman, Russia, at about 2:30 a.m. local time Wednesday, Kirill Fedorov, a pro-Russian blogger, said on his Telegram channel. The Port of Taman is in the Black Sea near the Kerch Strait.

The fire could be seen in a video circulating online.

Local authorities confirmed the fire, which "has been assigned the highest rank," the governor of the region said. A tank with petroleum products was hit by the drone and is burning, the governor said. No injuries were reported and there was no threat to residents, he added on his Telegram channel.

-ABC News' Tanya Stukalova

All drones that were used by Russians to attack Kyiv early Wednesday morning local time were shot down by Ukrainian air defense systems, the Kyiv City Military Administration said on Telegram.

There were no reported injuries or casualties, the military administration said.

This was the third attack on Kyiv in six days, the administration added.

-ABC News' Natalya Kushnir

Explosions were reported in Kyiv around 1:00 a.m. Wednesday local time, according to Suspilne, the Ukrainian public broadcaster.

The Ukrainian Air Defense Forces were activated in response, the Kyiv City Military Administration reported.

S-300 missiles belonging to Ukrainian Armed Forces were hit in Zaporizhzhia, the spokesman of the Odesa Regional Military Administration, Serhiy Bratchuk, said on Telegram.

Reports of damage, and number of people injured or killed were not immediately available.

-ABC News' Ellie Kaufman and Max Uzol

A 26-year-old U.S. Marine Corps veteran was killed in a mortar strike last month in Ukraine while working to evacuate civilians, his family confirmed to ABC News this week.

Cooper Andrews died on April 19 in the Bakhmut area, his cousin Willow Pastard, who is speaking on his family's behalf, told ABC News.

The State Department announced Monday that an American citizen died in Ukraine, though did not provide more details or an identity "out of respect for the family's privacy during this difficult time."

"We are in touch with the family and providing all possible consular assistance," a spokesperson for the agency said in a statement.

At least nine deaths of U.S. citizens who have volunteered to fight in Ukraine have been officially reported since the war began last year, according to the State Department.

-ABC News' Shannon Crawford

U.S. Treasury Secretary Janet Yellen visited Kyiv Monday and met with Ukrainian President Volodymyr Zelenskyy to reaffirm the U.S.'s financial support to Ukraine.

Yellen announced $1.25 billion in economic and budgetary assistance, which helps the Ukrainian government continue to run, funds payroll for soldiers on the front lines and shores up critical infrastructure, according to the Treasury Department.

Yellen said the money is part of the $45 billion Congress approved for Ukraine in December.

"I bring to Kyiv a clear message from President Biden and the American people: We will stand with Ukraine for as long as it takes," Yellen said in her remarks during her sitdown with Zelenskyy.

Yellen told Zelenskyy that the U.S. will provide over $8 billion in this type of assistance "over the coming months," according to the Treasury Department. A readout of the meeting stated the U.S. will provide $9.9 billion total during the first three quarters of 2023.

-ABC News' Sarah Kolinovsky