US President Barack Obama has praised Africa's economic and business potential, during a speech in the Kenyan capital, Nairobi.

He said Africa is on the move and the people are being lifted out of poverty.

It's the President's first official visit to Kenya.

Later, he'll visit a memorial to the 1998 US embassy bombing in the capital.

He's also pledged to deliver a blunt message to African leaders about gay rights and discrimination.

President Obama told crowds that Kenya was his father's homeland: