America's First Lady Michelle Obama has joined the Instagram craze to share snaps of her trip to Africa with followers.

U.S. President Barack Obama's wife has started up an account on the social network, and her first image, published on Thursday (27Jun13), was a photo of herself with daughter Malia.

The caption reads, "My first instagram! So inspired and so impressed by these extraordinary young women (in Africa)."

Michelle is accompanying the President on an official tour of Senegal, Tanzania, and South Africa, where they are due to visit ailing former President Nelson Mandela. The 94 year old has been in hospital since 8 June (13) with a lung infection.