Sir Nicholas Winton, who saved more than 650 children from certain death in Nazi concentration camps, has died aged 106.
Sir Nicholas arranged for trains to carry Jewish children out of the city of Prague, in the modern-day Czech Republic, in 1939.
His son-in-law Stephen Watson said he died peacefully in his sleep at Wexham Hospital in Slough, England.
Prime Minister David Cameron described him as a "great man".
Watch Hayley's report, which looks back at the life of Sir Nicholas Winton.