Pope Francis called on Wednesday for ethnic and religious reconcilation at the start of his first tour of Africa, where he will address a fast-growing Catholic population and seek to heal Christian-Muslim divisions.

The trip will see the head of the Catholic Church travel to Kenya and Uganda, both victim of Islamist militant attacks, and the Central African Republic, a country torn apart by Muslim-Christian strife.

In a speech delivered shortly after arriving in Kenya, the pope urged world leaders to pursue responsible economic development and to protect nature for future generations.