Awkward moments at the Mandela memorial

Barack Obama and David Cameron have been captured taking a selfie with Danish prime minister Helle Thorning-Schmidt at the Nelson Mandela memorial service.

The shot of the three leaders at the FNB Stadium stadium in Soweto has since gone viral and attracted a fair bit of criticism online for lacking due respect. First Lady Michelle Obama didn't appear to be too impressed, either.
It is not the only photo the US President may chose to regret. He was also pictured shaking hands with Cuban President Raul Castro, despite the long-standing trade embargo between the countries.

His speech got the Soweto crowd on its feet, but Michelle Obama looks unamused as her husband shares a joke with Mrs Thorning-Schmidt.

The South African President Jacob Zuma was booed as he made his speech during the memorial service.

They may be sitting next to each other, but the French President Francois Hollande and his predecessor Nicolas Sarkozy don't appear to be talking.

Mysteriously, there are no pictures of world leaders with the Zimbabwean President Robert Mugabe and his wife Grace.