LUANDA, April 19 -- Pope Leo XIV spoke out against tyranny and "disasters" caused by the exploitation of natural resources on Saturday as he arrived in Angola for a visit to the oil-rich country with high levels of poverty.

Leo flew in from Cameroon for the third leg of his tour of Africa, telling journalists on the plane that he regretted his 11-day trip had been overshadowed by a spat with US President Donald Trump.

In the capital Luanda, he travelled in his popemobile to meet President Joao Lourenco, with hundreds of cheering and waving people lining the route.

Throughout his four-nation Africa visit, which started in Algeria on Monday, the pope has delivered pointed warnings against corruption, the plunder of the continent's resour...