BUCHA, Ukraine (AP) — Moscow faced global revulsion and accusations of war crimes Monday after the Russian pullout from the outskirts of Kyiv revealed streets strewn with corpses of what appeared to be civilians, some of whom had seemingly been killed at close range.

The grisly images of battered bodies left out in the open or hastily buried led to calls for tougher sanctions against the Kremlin, namely a cutoff of fuel imports from Russia. Germany and France reacted by expelling dozens of Russian diplomats, suggesting they were spies, and U.S. President Joe Biden said Russian leader Vladimir Putin should be tried for war crimes.

“This guy is brutal, and what’s happening in Bucha is outrageous,” Biden said, referring to the town northwest of the capital that was the scene of some of the horrors.

Ukrainian President Volodymyr Zelenskyy left the capital, Kyiv, for his first reported trip since the war began nearly six weeks ago to see for himself what he called the “genocide” and “war crimes” in Bucha. He said dead people had been “found in barrels, basements, strangled, tortured.”

Later, in a video address to the Romanian parliament, Zelenskyy said he fears there are places where even worse atrocities have happened.

“The military tortured people, and we have every reason to believe that there are many more people killed,” he said. “Much more than we know now.”

Russian Foreign Minister Sergey Lavrov dismissed the scenes outside Kyiv as a “stage-managed anti-Russian provocation.” Kremlin spokesperson Dmitry Peskov said the images contained “signs of video forgery and various fakes.”

Russia has similarly rejected previous allegations of atrocities as fabrications on Ukraine’s part.

Ukrainian officials said the bodies of at least 410 civilians have been found in towns around Kyiv that were recaptured from Russian forces in recent days.

The Ukrainian Prosecutor-General’s Office described one room discovered in Bucha as a “torture chamber.” In a statement, it said the bodies of five men with their hands bound were found in the basement of a children’s sanatorium where civilians were tortured and killed.

Bodies wrapped in black plastic were also seen piled on one end of a mass grave in a Bucha churchyard. Many of the victims had been shot in cars or killed in explosions trying to flee the city, and with the morgue full and the cemetery impossible to reach, it was the only place to keep the dead, Father Andrii Galavin said.

Tanya Nedashkivs’ka said she buried her husband in a garden outside their apartment building after he was detained by Russian troops and was found dead with two others in a stairwell.

“Please, I am begging you, do something!” she said. “It’s me talking, a Ukrainian woman, a Ukrainian woman, a mother of two kids and one grandchild. For all the wives and mothers, make peace on Earth so no one ever grieves again.”

Another Bucha resident, Volodymyr Pilhutskyi, said his neighbor Pavlo Vlasenko was taken away by Russian soldiers because the military-style pants he was wearing and the uniforms that Vlasenko said belonged to his security guard son appeared suspicious. When Vlasenko’s body was later found, it had burn marks from a flamethrower, his neighbor said.

“I came closer and saw that his body was burnt,” Pilhutskyi said. “They didn’t just shoot him. They also used that weapon which sends out fire.”

In other developments, more than 1,500 civilians were evacuated Monday from the besieged and devastated port city of Mariupol in the south, using the dwindling number of private vehicles available to get out, Ukrainian Deputy Prime Minister Iryna Vereshchuk said.

But amid the fighting, a Red Cross-accompanied convoy of buses that has been thwarted for days on end in a bid to deliver supplies and evacuate residents was again unable to get inside the city, Vereshchuk said.

European leaders and the United Nations human rights chief joined the Ukrainians in condemning the bloodshed that was exposed after Russian troops withdrew from the capital area.

At the same time, many warned that the full extent of the horrors has yet to emerge.

“I can tell you without exaggeration but with great sorrow that the situation in Mariupol is much worse compared to what we’ve seen in Bucha and other cities, towns, and villages nearby Kyiv,” Ukrainian Foreign Minister Dmytro Kuleba said.

Western and Ukrainian leaders have accused Russia of war crimes before, and the International Criminal Court’s prosecutor has already opened an investigation. But the latest reports ratcheted up the condemnation.

German Foreign Minister Annalena Baerbock said the images from Bucha reveal the “unbelievable brutality of the Russian leadership and those who follow its propaganda.” And French President Emmanuel Macron said there is “clear evidence of war crimes” in Bucha that demand new punitive measures.

“I’m in favor of a new round of sanctions and in particular on coal and gasoline. We need to act,” he said on France-Inter radio.

Though united in outrage, the European allies appeared split on how to respond. While Poland urged Europe to quickly wean itself off Russian energy, Germany said it would stick with a gradual approach of phasing out coal and oil imports over the next several months.

The U.S. and its allies have sought to punish Russia for the invasion by imposing sweeping sanctions but fear further harm to the global economy, which is still recovering from the pandemic. Europe is in a particular bind, since it gets 40% of its gas and 25% of its oil from Russia.

Poland’s prime minister, Mateusz Morawiecki, described Russia under Putin as a “totalitarian-fascist state” and called for strong actions “that will finally break Putin’s war machine.” “Would you negotiate with Hitler, with Stalin, with Pol Pot?” Morawiecki asked of Macron.

Russia withdrew many of its forces from the capital area in recent days after being thwarted in its bid to swiftly capture Kyiv.

It has instead poured troops and mercenaries into the country’s east in a stepped-up bid to gain control of the Donbas, the largely Russian-speaking industrial region that includes Mariupol, which has seen some of the heaviest fighting and worst suffering of the war.

About two-thirds of the Russian troops around Kyiv have left and are either in Belarus or on their way there, probably getting more supplies and reinforcements, said a senior U.S. defense official who spoke on condition of anonymity to discuss an intelligence assessment.

Russian forces also appear to be repositioning artillery and troops to try to take the city of Izyum, which lies on a key route to the Donbas, the official said.

Dmytro Zhyvystskyy, governor of Ukraine’s northern Sumy Region, said Russian troops who took over the area on the way toward Kyiv have also retreated back to Russia, with Ukrainian forces capturing small groups left behind.

Putin’s Feb. 24 invasion has left thousands of people dead and forced more than 4 million Ukrainians to flee their country.

“This is a war of murders, a lot of blood. A lot of civilians are dying,” said Natalia Svitlova, a refugee from Dnipro in eastern Ukraine who fled to Poland. “I don’t understand why this is possible in the 21st century and why no one can stop it.”

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Qena reported from Motyzhyn, Ukraine. Yuras Karmanau in Lviv, Ukraine. Lolita Baldor in Washington and Associated Press journalists around the world contributed.

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Follow the AP’s coverage of the war at https://apnews.com/hub/russia-ukraine