Live news stream
The Foreign Office has advised Sir Ian McKellen "not to go to Russia" because of the country's homosexuality laws, according to the actor.
Sir Ian, 74, told the Radio Times: "That's why I can't go... they couldn't protect me from those laws.
"Two and a half hours from London! In the land of Tchaikovsky, Diaghilev, Rudolf Nureyev - gay artists whose sexuality informed their work."
The actor came out as being gay at the age of 49.
Johannesburg's transport system is under strain as thousands of people try to make their way to the FNB Stadium for Nelson Mandela's memorial.
Some residents of Soweto - an area of Johannesburg - told Reuters they had been waiting for a bus since 4am, but that very few were coming through.
Even at bus shelters, there is a celebratory mood as with people singing and dancing.
Two new parents have told Daybreak of their joy at adopting siblings and the bond they have built with the young children.
Liz and John were speaking as children's charity Barnardo's launches a campaign to persuade more people to adopt siblings, as 50% of the children on the Adoption Register are immediately related.
Mum Liz dismissed concerns two children would be overwhelming for new parents, because if there was no previous parenting experience to compare it to, "how would you know any different?"
Dad John beamed as he spoke of the thought of his first Christmas with his children:
"We have always really wanted to have two children. Unfortunately we cannot have children naturally. When we started out with the adoption process, we always said we wanted two children.
"That's what we aim for, and that is what we got."
Former Chelsea striker Didier Drogba responded to reports that he may be fined by the Turkish FA for displaying a shirt that read "thank you Madiba" by saying "if I had to, I would do it again and again."
Both he and fellow Galatasaray and Ivory Coast teammate Emmanuel Eboue revealed vests paying tribute to Nelson Mandela following the Turkish club's 2-0 win on Friday evening.
The Turkish FA are reportedly threatening to fine the pair because they did not seek permission to wear the shirts.
The Ivory Coast striker said on his Drogba Foundation Twitter page: "Not because of political beliefs - this man (Mandela) inspired me, a country, a continent, the world! Thanks again Madiba."
Former newspaper editor Piers Morgan said he would "happily pay" any fine Drogba might be given by the Turkish FA.
South African President Jacob Zuma has arrived at the FNB stadium ahead of the memorial service for Nelson Mandela.
The captain of the 1995 Rugby World Cup winning team, Francois Pienaar, is giving interviews in the FNB stadium ahead of today's memorial.
Also present is the current Springbok captain Jean de Villiers.
Two French soldiers have been killed in Central African Republic, according to French media. Troops were deployed to the former French colony amid ongoing violence between Muslim and Christian communities.
The rain in Johannesburg has not dampened the spirits of the thousands arriving for Nelson Mandela's memorial.
South Africans have taken to Twitter to pay their respects to Nelson Mandela ahead of the memorial service in Johannesburg for the anti-apartheid leader.
Even the weather is crying, gonna be a sad day now that Nelson Mandela's memorial service will be taking place. #RIPMadiba
FNB Stadium#Madiba http://t.co/HBu7AUQwwZ
Mandela Magic in the air today! So proud to be a South African to have lived in this moment! #Historic event today :)