Zelensky alleges Russian troops are leaving mines during retreat from Kyiv region

As Russian forces pull back from Ukraine's capital region, retreating troops are creating a "catastrophic" situation for civilians by leaving mines around homes, abandoned equipment and "even the bodies of those killed," President Volodymyr Zelensky alleged on Saturday.

Ukraine and its Western allies reported mounting evidence of Russia withdrawing its forces from around Kyiv and building its troop strength in Eastern Ukraine. Ukrainian fighters reclaimed several areas near the capital after forcing the Russians out or moving in after them, officials said.

The visible shift did not mean the country faced a reprieve from more than five weeks of war or that the more than four million refugees who have fled Ukraine will return soon. Zelensky said he expects departed towns to endure missile strikes and rocket strikes from afar and for the battle in the east to be intense.

"It's still not possible to return to normal life, as it used to be, even at the territories that we are taking back after the fighting. We need wait until our land is de-mined, wait till we are able to assure you that there won't be new shelling," the president said during his nightly video address. His claims about Russian mines couldn't be independently verified.

Moscow's focus on Eastern Ukraine also kept the besieged southern city of Mariupol in the crosshairs. The port city on the Sea of Azov is located in the mostly Russian-speaking Donbas region, where Russia-backed separatists have fought Ukrainian troops for eight years. Military analysts think Russian President Vladimir Putin is determined to capture the region after his forces failed to secure Kyiv and other major cities.

The International Committee of the Red Cross planned to try on Saturday to get into Mariupol to evacuate residents from the city. The Red Cross said it could not carry out the operation Friday because it did not receive assurances the route was safe. City authorities said the Russians blocked access to the city.

The humanitarian group said a team with three vehicles and nine Red Cross staff members was headed to Mariupol on Saturday to help facilitate the safe evacuation of civilians from the city. It said its team planned to accompany a convoy of civilians from Mariupol to another city.

"Our presence will put a humanitarian marker on this planned movement of people, giving the convoy additional protection and reminding all sides of the civilian, humanitarian nature of the operation," it said in a statement.

Mariupol's city council said Saturday that 10 empty buses were headed to Berdyansk, a city 84 kilometres west of Mariupol, to pick up people who manage to get there on their own. About 2,000 made it out of Mariupol on Friday, some on buses and some in their own vehicles, city officials said.

Evacuees boarded about 25 buses in Berdyansk and arrived around midnight to Zaporizhzhia, a city still under Ukrainian control that has served as the destination under previous ceasefires announced — and then broken — to get civilians out and aid into Mariupol.

Among them was Tamila Mazurenko, who said she fled Mariupol on Monday and made it to Berdyansk that night. Mazurenko said she waited for a bus until Friday, spending one night sleeping in a field.

"I have only one question: Why?" she said of her city's ordeal. "We only lived as normal people. And our normal life was destroyed. And we lost everything. I don't have any job, I can't find my son."

Mariupol, which was surrounded by Russian forces a month ago, has suffered some of the war's worst attacks, including on a maternity hospital and a theatre that was sheltering civilians. Around 100,000 people are believed to remain in the city, down from a pre-war population of 430,000, and they are facing dire shortages of water, food, fuel and medicine.

The city's capture would give Moscow an unbroken land bridge from Russia to Crimea, which it seized from Ukraine in 2014. But its resistance has also has taken on symbolic significance during Russia's invasion, said Volodymyr Fesenko, head of the Ukrainian think-tank Penta.