Prime Minister David Cameron has described the former South African president Nelson Mandela as an "heroic figure in world history".
Mr Cameron said: "I think it's very important to mark the passing of an absolutely heroic figure in world history, someone who has given us extraordinary lessons to learn and to live by.
"I'm sure Parliament will rise to the occasion and will reflect the concerns right across this country that we've lost an incredible hero who did a brilliant thing for our world.
"I will be flying to South Africa with other heads of government and heads of state, to be there. I think its very important to pay our respects, to mark this moment, and to say goodbye to a remarkable man."