Obama begins talks with Ethiopia's PM Hailemariam Desalegn (PHOTOS)

US President Barack Obama has begun talks with Ethiopia's Prime Minister Hailemariam Desalegn on the second leg of his African tour.

They are expected to centre on human rights and regional security issues, as well as the civil war in South Sudan.

Mr Obama is the first serving US leader to visit Ethiopia and will be the first to address the 54-member African Union in Addis Ababa on Tuesday.

Mr Obama flew to Ethiopia after a two-day visit to Kenya.