70 years ago tonight Russian troops were advancing through southern Nazi-occupied Poland and closing in on the notorious Auschwitz death camp - the following day they liberated it.
Tomorrow survivors will gather at the site to mark the anniversary.
Our correspondent David Wood reports:
More top news
UK weather forecast. Calendar weather: Warmer weather is coming with some sunshine
The concern follows a call to emergency services from the Great Horton area of Bradford
Ricky Moate says he wanted the family to know just how grateful he is for his gift of life.