DAVID Cameron has defended himself against criticism after posing for a "selfie" photograph at ­Tuesday's memorial service for Nelson Mandela.

The Prime Minister posed with US president Barack Obama and Danish PM Helle Thorning-Schmidt - daughter-in-law of former Labour leader Lord Kinnock - in the FNB Stadium in Soweto. Asked about it at Prime Minister's Questions, and to laughter from MPs, Mr Cameron replied: "In my defence I would say that Nelson Mandela played an extraordinary role in his life and in his death in bringing people together. So, of course, when a member of the Kinnock family asked me for a photograph, I thought it was only polite to say yes."