KYIV, Ukraine >> Russia stepped up its missile and drone attacks against Ukraine today, killing students and other civilians, in a violent follow-up to dueling high-level diplomatic missions aimed at bringing peace after 13 months of war.

“Russia is shelling the city with bestial savagery,” President Volodymyr Zelenskyy wrote in a Telegram post accompanying video showing what he said was a Russian missile striking a nine-story apartment building on a busy road in the southeastern city of Zaporizhzhia. “Residential areas where ordinary people and children live are being fired at.”

At least one person was killed in the attack shown in the Zaporizhzhia video, apparently recorded by closed circuit TV cameras. Elsewhere, Moscow’s forces launched exploding drones before dawn, killing seven people in or near a student dormitory near Kyiv.

Ukrainian media showed several angles of the missile raining down on an apartment building across the street from a shopping mall in Zaporizhzhia, producing a huge plume of gray and black smoke, with bits of concrete flying into the air as cars whizzed by. Videos showed the violent outcome of the attack: charred apartments, flames and smoke billowing out of several floors of the buildings, and piles of broken concrete and shards of glass on the ground. Two children were among the wounded, said Zaporizhzhia City Council Secretary Anatolii Kurtiev, adding that 25 people needed hospital treatment, with three in critical condition.

Zaporizhzhia city is about 60 miles from the Zaporizhzhia Nuclear Power Plant, Europe’s largest which has previously come under threat during the war and has been shut down for months. The U.N.’s International Atomic Energy Agency reported the plant had suffered another loss of a backup external power source. Its six reactors still need power to cool nuclear fuel, and were relying on only a primary source today, the IAEA said.

Russia has denied targeting residential areas even though artillery and rocket strikes hit apartment buildings and civilian infrastructure on a daily basis. Russian officials have blamed Ukrainian air defenses for some of the deadliest strikes on apartments, saying the deployment of air defense systems in residential areas puts civilians at risk. Russia sometimes also claims Ukraine is hiding military equipment and personnel in civilian buildings.

The war, which Russia started on Feb. 24, 2022, has evolved in two main directions: a front line mainly in eastern Ukraine, centered around the city of Bakhmut, and periodic Russian missile and drone strikes nationwide. In addition, periodic — although unconfirmed — Ukrainian sabotage attacks have been launched across the border into Russia. The front-line fighting largely stalemated over the winter, with expectations of major offensives by both sides expected in more favorable spring weather.

Earlier today, a drone attack damaged a high school and two dormitories in the city of Rzhyshchiv, south of the Ukrainian capital, officials said. It wasn’t clear how many people were in the dormitories at the time.

The body of a 40-year-old man was pulled from the rubble on one floor, according to regional police chief Andrii Nebytov, adding that more than 20 people were hospitalized. Video showed what appeared to be a bloodied sneaker and a green ball on the ground near a damaged building, whose top floor was ripped off at a corner.

The attacks occurred as two dueling diplomatic missions were winding down. Japanese Prime Minister Fumio Kishida left Kyiv after meeting Zelenskyy in a show of support for Ukraine. Chinese leader Xi Jinping left Moscow after meeting with Russian President Vladimir Putin and discussing his Beijing’s proposal, which has been rejected by the West as a non-starter. No progress toward peace was reported.

The drone barrage and other Russian attacks on civilian infrastructure drew a scathing response from Zelenskyy.

“Over 20 Iranian murderous drones, plus missiles, numerous shelling occasions, and that’s just in one last night of Russian terror,” he tweeted in English. “Every time someone tries to hear the word ‘peace’ in Moscow, another order is given there for such criminal strikes.”

Zaporizhzhia’s regional administration said two missiles struck the apartment block, saying Russia’s goal is “to scare the civilian population of the city of thousands.”

“It’s hell in Zaporizhzhia,” Ukrainian lawmaker Oleksiy Goncharenko wrote on Telegram, adding: “There aren’t any military facilities nearby.”

Vladimir Rogov, an official with the Moscow-appointed regional administration for the Russian-occupied part of the Zaporizhzhia region, claimed, without offering evidence, that a Ukrainian air defense missile launched to intercept a Russian missile had hit the apartment complex.

In other attacks, Ukrainian air defenses downed 16 of the 21 drones that Russia launched, the Ukraine General Staff said. Eight were shot down near the capital, according to the city’s military administration. Other drones struck west-central Khmelnytskyi province.

Also today, Zelenskyy made another in a periodic series of battlefield visits, meeting with soldiers and officers in the eastern Donetsk region, stopping by a hospital to see wounded troops and giving state awards to the defenders of Bakhmut, a devastated city that has become a symbol of Ukraine’s dogged resistance. Zelenskyy’s last known visit to the Bakhmut area was in December.

In other developments:

>> The Russian military fended off a drone attack on the main harbor in the Black Sea fleet headquarters city of Sevastopol early today, the city’s Moscow-appointed head, Mikhail Razvozhayev, reported. He said the navy destroyed three aquatic drones, that Russian warships weren’t damaged and that several civilian facilities were damaged when the drones were hit and exploded. The blasts shattered windows in several buildings near the harbor. No injuries were reported. Ukrainian officials didn’t claim responsibility for the attack.

>> Three people were wounded in a Russian missile attack on a monastery in the southern Ukrainian port city of Odesa on Tuesday night. According to Ukrainian Presidential Office head Andrii Yermak, two of four missiles were shot down.

>> Ukraine’s Finance Ministry agreed with the International Monetary Fund on a $15.6 billion loan package aimed at shoring up the country’s economy, which the invasion has crippled. Ukrainian officials hope the IMF deal will encourage their allies to provide financial support, too.

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Elise Morton in London and Andrew Katell in New York contributed.