During the highest-level US visit to Ukraine since the Russian invasion two months earlier, top American officials offered Ukrainian President Volodymyr Zelenskyy hundreds of millions of dollars in new help.

US Secretary of State Antony Blinken and Defense Secretary Lloyd Austin told Zelenskyy in Kyiv that the US had approved a $165 million sale of munitions to Ukraine's war effort and more than $300 million in foreign military financing.

The commitments came on Sunday, the 60th day after the invasion began. Ukraine lobbied the West for more powerful weapons to counter Russia's campaign in eastern Ukraine's Donbas area, where Moscow's soldiers were attempting to evict the last Ukrainian troops from the damaged port of Mariupol.

On the diplomatic front, United Nations Secretary-General Antonio Guterres was to visit Turkey on Monday, followed by Moscow and Kyiv. According to Zelenskyy, Guterres made a mistake by visiting Russia before Ukraine.

“Why? To transmit Russian signals? What should we be on the lookout for?" Saturday, Zelenskyy stated. "There are no bodies strewn about on the Kutuzovsky Prospect," he remarked, referring to one of Moscow's main thoroughfares.

French President Emmanuel Macron easily won re-election to a second term Sunday, edging off far-right candidate Marine Le Pen, who had threatened to weaken France's links to the European Union and NATO. Le Pen has also spoken out against European Union sanctions on Russian energy and faced scrutiny during the campaign for her former ties to the Kremlin.

Macron's victory was welcomed as a comforting sign of stability and continuing support for Ukraine by France's EU allies. France has been a leader in international attempts to criticize Russia and supplies Ukraine with armed systems.

"We have a lot to do, and the war in Ukraine reminds us that we are living in tragic times," Macron told a jubilant crowd during his victory address.

Zelenskyy's encounter with US authorities marked his first face-to-face interaction with a senior American official since a Feb. 19 meeting in Munich with Vice President Kamala Harris. Zelenskyy, Jewish, spoke from Kyiv's venerable St. Sophia Cathedral, emphasizing the cathedral's significance to a nation ravaged by over two months of conflict.

"Today's great holiday inspires us with great hope and unwavering faith that light will triumph over darkness, good will triumph over evil, life will triumph over death, and thus Ukraine will undoubtedly win!" he declared.

To the north of Ukraine, on the Russian side of the border, an oil depot caught fire early Monday, but Russia's Tass news agency reported no specific reason for the incident in oil storage tanks.

NASA satellites that monitor fires detected activity near the coordinates of a Rosneft plant about 110 kilometers (70 miles) north of the Ukrainian border. Previously, Moscow blamed Ukraine for attacks on the Russian border region of Bryansk.

Since failing to conquer Kyiv, the Russians have sought complete control of the Donbas, eastern Ukraine's industrial heartland, where Moscow-backed separatists held some territory before the war.

Russia has regrouped forces that fought around Kyiv and northern Ukraine for the Donbas offensive. According to the British Ministry of Defense, Ukrainian troops have successfully withstood repeated attacks over the last week and "inflicted high costs on Russian forces."

In the south of the Donbas, in the vital port city of Mariupol, a small enclave of Ukrainian troops continues to hold out against Russian forces within the massive Azovstal steel mill on the waterfront.

Mariupol has been the scene of severe fighting since the conflict began, owing to its location on the Sea of Azov. Its seizure would deprive Ukraine of an important port, free up Russian soldiers for other missions, and enable Moscow to construct a land corridor to the Crimean Peninsula, which it seized from Ukraine in 2014.

Russian military launched further airstrikes on the steel mill over the weekend to evict the estimated 2,000 fighters inside. Around 1,000 individuals are also taking refuge in the structure.

Planet Labs PBC satellite photographs obtained Sunday show demolished buildings throughout the steelworks and smoke rising from one section of the site. Roofs are riddled with holes, and a soccer field has been cratered by incoming fire.

Over 100,000 people — down from a prewar population of approximately 430,000 — are expected to remain in Mariupol, where scarce food, water, and heat. According to Ukrainian authorities, around 20,000 civilians have been killed. Recent satellite photographs revealed what seemed to be mass graves on the outskirts of Mariupol to the west and east.

Children in an underground bunker are seen receiving Easter gifts in a video published Sunday by the far-right Azov Battalion, stationed at the Mariupol steel mill. Sviatoslav Palamar, the group's deputy commander, confirmed that the video was filmed at the plant.

One kid is pictured wearing improvised cellophane diapers, while others are seen hanging laundry on makeshift hangers.

"Please assist us," one woman in the video pleads with international leaders through tears. "We wish to reside in our city and country. We are fed up with these attacks and continual air strikes on our territory. How much longer is this going to go on?"