Nairobi: US President Barack Obama declared Saturday that “Africa is on the move”, praising the spirit of entrepreneurship at a business summit in Kenya as he kicked off a landmark visit.

Obama arrived in Kenya late on Friday, making his first visit to the country of his father’s birth since he was elected president.

“I wanted to be here, because Africa is on the move, Africa is one of the fastest growing regions in the world,” Obama said.

“People are being lifted out of poverty, incomes are up, the middle class is growing and young people like you are harnessing technology to change the way Africa is doing business,” Obama told the entrepreneurship summit in his first official engagement in Nairobi.

The US embassy itself warned the summit could be “a target for terrorists”, but Kenyan President Uhuru Kenyatta, sharing the stage with Obama, said the event showed a different side to Africa.

“The narrative of African despair is false, and indeed was never true,” Kenyatta said. “Let them know that Africa is open and ready for business.”

A massive security operation was under way in Nairobi, with parts of the usually traffic-clogged capital locked down and airspace also closed for the president’s landing on Friday and his scheduled departure late Sunday for neighbouring Ethiopia.

Top of the list of security concerns is Somalia’s Al-Qaeda-affiliate, the Shebab, who have staged a string of suicide attacks, massacres and bombings on Kenyan soil. Two years ago a Shebab assault on the Westgate shopping mall in the heart of the capital left 67 dead.