Pope Francis kisses feet of rival South Sudan leaders

Pope Francis has kissed the feet of South Sudan's previously warring leaders during a two-day spiritual retreat at the Vatican.

"I am asking you as a brother to stay in peace. I am asking you with my heart, let us go forward," the 82-year-old pontiff said after he performed the rare gesture.

President Salva Kiir and his rival, the former rebel leader Riek Machar, clashed in 2013 leading to a civil war that left 400,000 people dead.

But they signed a peace agreement last year that brought the war to an end.