survivors of the auschwitz concentration camp have been commemorating the 40th anniversary of their liberation. they toured the huts, gas chambers and crematoria and relived their horrifying experiences. this is newsday on the bbc. i'm karishma vaswani in singapore. 0ur headlines: britain's prince andrew demands a trial byjury in new york, as he rejects the allegations of sexual assault made by virginia giuffre. the us rejects russian security demands on ukraine and eastern europe and says further talks will address moscow's concerns. more on that ukraine story now. earlier, i spoke to nina jankowicz from