A 96-year-old who survived being held in four concentration camps during the Second World War has been killed during the Russian attack on Kharkiv.
Boris Romanchenko, who lived through Nazi imprisonment at Buchenwald, Peenemunde, Dora and Bergen-Belsen, was killed on Friday in the block of flats where he lived.
Germany's Buchenwald concentration camp memorial said on Twitter it had been told of the news by his granddaughter.
It added: "Boris Romanchenko worked intensively on the memory of Nazi crimes and was vice-president of the Buchenwald-Dora International Committee.
"In 2012, Boris Romanchenko read the Buchenwald oath 'creating a new world where peace and freedom reign' during the celebration of the anniversary of the liberation of the Buchenwald concentration camp."
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Kharkiv - a short drive from the border with Russia - has come under an unrelenting Russian assault.
Over the weekend, at least five civilians were killed.
Regional police said victims of the artillery attack on Sunday included a nine-year-old boy.
Sky correspondent John Sparks travelled with the Ukrainian military to the front line on the outskirts of the city and described the "air filled with the deep-sounding boom of tank and artillery fire".