KYIV, Ukraine — The U.S. secretaries of state and defense met Sunday night with Ukrainian President Volodymyr Zelensky in the highest-level visit to the country’s capital by an American delegation since the start of Russia’s invasion.

The meeting with U.S. Secretary of State Antony Blinken and U.S. Defense Secretary Lloyd Austin, which was confirmed by a senior Ukrainian official, came as Ukraine pressed the West for more powerful weapons against Russia’s campaign in the Donbas region of eastern Ukraine, where Moscow’s forces sought to dislodge the last Ukrainian troops in the battered port of Mariupol.

Ukrainian President Volodymyr Zelensky speaks in Kyiv, Ukraine. Ukrainian Presidential Press Office via AP

“Yes, they’re meeting with the president. Let’s hope something will be decided on further help,” Ukrainian presidential adviser Oleksiy Arestovych told Russian lawyer and activist Mark Feygin on his YouTube show “Feygin Live.” The United States has not yet commented.

Before the session with Blinken and Austin, Zelensky said he was looking for the Americans to produce results, both in arms and security guarantees.

“You can’t come to us empty-handed today, and we are expecting not just presents or some kind of cakes, we are expecting specific things and specific weapons,” he said.

Zelensky’s last face-to-face meeting with a top U.S. official was Feb. 19 in Munich with Vice President Kamala Harris, five days before Russia’s invasion. While the West has funneled military equipment to Ukraine, Zelensky has stressed repeatedly that his country needs more heavy weapons, including long-range air defense systems and warplanes.

In an apparent boost for Ukraine, polling agencies said French President Emmanuel Macron would win reelection over far right candidate Marine Le Pen, who has faced questions about her ties to Moscow. The result was hailed by France’s allies in the European Union as a reassuring sign of stability and continued support for Ukraine. France has played a leading role in international efforts to punish Russia with sanctions and is supplying weapons systems to Ukraine.

Zelensky’s meeting with U.S. officials took place as Ukrainians and Russians observed Orthodox Easter. Speaking from Kyiv’s ancient St. Sophia Cathedral, Zelensky, who is Jewish, highlighted its significance to a nation wracked by nearly two months of war.

A Ukrainian serviceman inspects a heavily damaged apartment building after Russian bombardment Sunday in Kharkiv, Ukraine. Felipe Dana/Associated Press

“The great holiday today gives us great hope and unwavering faith that light will overcome darkness, good will overcome evil, life will overcome death, and therefore Ukraine will surely win!” he said.

Still, the war cast a shadow over celebrations. In the northern village of Ivanivka, where Russian tanks still littered the roads, Olena Koptyl said “the Easter holiday doesn’t bring any joy. I’m crying a lot. We cannot forget how we lived.”

The Russian military reported hitting 423 Ukrainian targets overnight, including fortified positions and troop concentrations, while its warplanes destroyed 26 Ukrainian military sites, including an explosives factory and several artillery depots.

Since failing to capture Kyiv, the Russians have aimed to gain full control over the eastern industrial heartland, where Moscow-backed separatists controlled some territory before the war.

Russian forces launched fresh airstrikes on a Mariupol steel plant where an estimated 1,000 civilians are sheltering along with about 2,000 Ukrainian fighters. The Azovstal steel mill where the defenders are holed up is the last corner of resistance in the city, otherwise occupied by the Russians.

Zelensky said he stressed the need to evacuate civilians from Mariupol, including from the steel plant, in a Sunday call with Turkish President Recep Tayyip Erdogan, who is scheduled to speak later with Russian leader Vladimir Putin.

Ukrainian servicemen set the table with Orthodox traditional food during the Easter celebration at the frontline position of 128 brigade of Ukrainian army near Zaporizhzhia, Ukraine, Sunday. Andriy Dubchak/Associated Press

Arestovych, the Zelensky adviser, said Ukraine has proposed holding talks with Russia next to the sprawling steel mill. Arestovych said on the Telegram messaging app that Russia has not responded to the proposal that would include establishing humanitarian corridors and the exchange of Russian war prisoners for the fighters still in the plant.

U.N. Secretary-General Antonio Guterres is scheduled to travel to Turkey on Monday and then Moscow and Kyiv. Zelensky said it was a mistake for Guterres to visit Russia before Ukraine.

“Why? To hand over signals from Russia? What should we look for?” Zelensky said Saturday. “There are no corpses scattered on the Kutuzovsky Prospect,” he said, referring to one of Moscow’s main avenues.

Mariupol has endured fierce fighting since the start of the war because of its location on the Sea of Azov. Its capture would deprive Ukraine of a vital port, free up Russian troops to fight elsewhere, and allow Moscow to establish a land corridor to the Crimean Peninsula, which it seized from Ukraine in 2014.

More than 100,000 people — down from a prewar population of about 430,000 — are believed to remain in Mariupol with scant food, water or heat. Ukrainian authorities estimate over 20,000 civilians have been killed. Recent satellite images showed what appeared to be mass graves to the west and east of Mariupol.

Children in an underground bunker were seen receiving Easter presents in a video released Sunday by the far-right Azov Battalion, which is among the Ukrainian forces at the steel plant in Mariupol. The group’s deputy commander, Sviatoslav Palamar, said the video was shot at the plant.

Oleksandr, 26, kisses his son Egor, 2, and his wife Alyona, 26, as they meet at the train station after more than two months separated for the war in Kyiv, Ukraine on Saturday. Emilio Morenatti/Associated Press

One toddler is seen wearing homemade diapers made of cellophane and people are seen hanging laundry on makeshift hangers.

“Please help us,” one woman in the video said through tears, appealing to world leaders. “We want to live in our city, in our country. We are tired of these bombings, constant air strikes on our land. How much longer will this continue?”

Mykhailo Podolyak, another presidential adviser, tweeted that the Russian military was attacking the plant with heavy bombs and artillery while accumulating forces and equipment for a direct assault.

Zelensky on Saturday accused Russians of committing war crimes by killing civilians and of setting up “filtration camps” near Mariupol for people trying to leave the city. He said the Ukrainians — many of them children — are then sent to areas under Russian occupation or to Russia itself, often as far as Siberia or the Far East.

The claims could not be independently verified. But they were repeated by Ukrainian lawmaker Yevheniya Kravchuk on ABC’s “This Week.”

“They have pulled these people from Mariupol — they are put to filtration camps … it’s sort of something that can’t be happening in the 21st century,” Kravchuk said.

Zelensky also claimed that intercepted communications recorded Russian troops discussing “how they conceal the traces of their crimes” in Mariupol.

And he highlighted the death of a 3-month old girl in a Russian missile strike Saturday on the Black Sea port of Odesa. The baby was among eight people killed when Russia fired cruise missiles at Odesa, Ukrainian officials said.

Ukrainian news agency UNIAN, citing social media, reported that the infant’s mother, Valeria Glodan, and grandmother also died when a missile hit a residential area. Zelensky promised to find and punish those responsible.

“The war started when this baby was 1 month old,” Zelensky said. “Can you imagine what is happening? They are filthy scum; there are no other words for it.”

For the Donbas offensive, Russia has reassembled troops who fought around Kyiv and in northern Ukraine. The British Ministry of Defense said Ukrainian forces had repelled numerous assaults in the past week and “inflicted significant cost on Russian forces.”

The spiritual leaders of the world’s Orthodox Christians and Roman Catholics appealed for relief for Ukraine’s suffering population.

From Istanbul, Ecumenical Patriarch Bartholomew I said a “human tragedy” was unfolding. Bartholomew, considered the first among his Eastern Orthodox patriarch equals, cited in particular “the thousands of people surrounded in Mariupol, civilians, among them the wounded, the elderly, women and many children.”

Pope Francis, speaking from a window overlooking St. Peter’s Square, renewed his call for an Easter truce, calling it “a minimal and tangible sign of a desire for peace.”