Pope Francis said the world needs to address climate change while visiting the Pacific Island nation of Papua New Guinea, which is partly endangered by a rising Pacific Ocean.

Pope Francis urged Papua New Guinea on Saturday to "stop the spiral" of tribal violence that has killed untold numbers of people and displaced tens of thousands more.

Pope Francis landed in Papua New Guinea's Port Moresby on Friday, the second stop of a marathon 12-day tour to the Asia-Pacific region.

Over mountains, by air, and by sea, pilgrims have flocked to Port Moresby, Papua New Guinea’s capital where Pope Francis landed late Friday on a landmark visit. The 87-year-old pontiff will spend four days and three nights in one of the Pacific’s poorest and most troubled nations,